OK. did the consol thingy on windows, and it's connecting. 
Weird thing is : the console "seems" to connect but isn't able to save, :  got the "unexpected error 500" everytime. check logs.
Logs are clear ;(
2012-07-31 21:01:32,190 INFO  [ServiioConsole] Starting Serviio Console
2012-07-31 21:01:33,176 INFO  [ServiioConsole] Connecting to Serviio REST on 192.168.0.100:23423
2012-07-31 21:01:53,852 INFO  [Messages] Loaded console message bundle for locale: en
2012-08-01 00:03:36,719 WARN  [RepositoryView$LibraryStatusCheckerThread] Error retrieving library update status: Connection Error (1000) - Connection refused: connect
2012-08-01 00:20:56,563 INFO  [ServiioConsole] Leaving Serviio Console
2012-08-01 00:20:59,493 INFO  [ServiioConsole] Starting Serviio Console
2012-08-01 00:20:59,546 INFO  [ServiioConsole] Connecting to Serviio REST on 192.168.0.100:23423
2012-08-01 00:21:00,341 INFO  [Messages] Loaded console message bundle for locale: en
Also , i can acces the media browser, the content is being listed, but mp3 or Vids won't play. IT says : error 200 stream not found"
Serviio doesn't show up as a dlna server either. 
the 2 runniong processes : 
-   Code:
- root@mail:/usr/share/serviio/log# ps aux |grep serviio
 www-data  8379  0.0  0.0   2216   524 ?        S    00:03   0:00 /bin/sh /usr/share/serviio/bin/serviio.sh
 www-data  8385 77.8 11.1 675988 114480 ?       Sl   00:03   3:18 java -Xmx512M -Xms20M -XX:+UseParNewGC -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=20 -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dderby.system.home=/usr/share/serviio/library -Dserviio.home=/usr/share/serviio -classpath /usr/share/serviio/lib/*:/usr/share/serviio/config org.serviio.MediaServer
 
Some logs for what it's worth : 
2012-07-31 00:56:07,212 INFO  [LibraryAdditionsCheckerThread] Added file 'DSC_4351.JPG' (title: DSC_4351) to Library
2012-07-31 00:56:08,786 INFO  [LibraryAdditionsCheckerThread] Added file 'DSC_4457.JPG' (title: DSC_4457) to Library
2012-07-31 00:56:09,702 WARN  [IndexedDiskCache] Region [thumbnails] Disk cache not shutdown properly, shutting down now.
2012-07-31 00:56:09,720 WARN  [IndexedDiskCache] Region [online_technical_metadata] Disk cache not shutdown properly, shutting down now.
2012-07-31 00:56:09,742 WARN  [ImageService] Cannot convert image to JPG. Message: Error reading image for resizing. Message: closed
2012-07-31 00:56:09,795 INFO  [LibraryAdditionsCheckerThread] Added file 'DSC_4322.JPG' (title: DSC_4322) to Library
2012-07-31 00:56:09,954 WARN  [LibraryAdditionsCheckerThread] An error occured while scanning for item to be added, will continue
org.serviio.db.dao.PersistenceException: Cannot mark Repository with id 3 as scanned
        at org.serviio.library.dao.RepositoryDAOImpl.markRepositoryAsScanned(RepositoryDAOImpl.java:173)
        at org.serviio.library.local.service.RepositoryService.markRepositoryAsScanned(RepositoryService.java:112)
        at org.serviio.library.local.metadata.LibraryAdditionsCheckerThread.run(LibraryAdditionsCheckerThread.java:84)
Caused by: java.sql.SQLNonTransientConnectionException: Connection closed by unknown interrupt.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(Unknown Source)
        at org.serviio.library.dao.RepositoryDAOImpl.markRepositoryAsScanned(RepositoryDAOImpl.java:171)
        ... 2 more
Caused by: java.sql.SQLException: Connection closed by unknown interrupt.
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
        at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown Source)
        ... 12 more
Caused by: ERROR 08000: Connection closed by unknown interrupt.
        at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
        at org.apache.derby.iapi.util.InterruptStatus.setInterrupted(Unknown Source)
        at org.apache.derby.iapi.util.InterruptStatus.throwIf(Unknown Source)
        at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.checkCancellationFlag(Unknown Source)
        at org.apache.derby.impl.sql.execute.TableScanResultSet.getNextRowCore(Unknown Source)
        at org.apache.derby.impl.sql.execute.IndexRowToBaseRowResultSet.getNextRowCore(Unknown Source)
        at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(Unknown Source)
        at org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(Unknown Source)
        at org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(Unknown Source)
        at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(Unknown Source)
        at org.apache.derby.impl.sql.execute.UpdateResultSet.open(Unknown Source)
        at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source)
        at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
        ... 6 more
2012-07-31 00:56:09,955 INFO  [LibraryAdditionsCheckerThread] Finished looking for newly added files
2012-07-31 00:56:10,030 INFO  [LibraryUpdatesCheckerThread] Finished looking for updates to currently shared files
2012-07-31 00:56:10,130 INFO  [FeedUpdaterThread] Finished looking for online resources information
2012-07-31 00:56:10,230 INFO  [PluginCompilerThread] Finished looking for plugins
2012-07-31 00:56:10,442 INFO  [WebServer] WebServer shutting down
2012-07-31 00:56:10,442 INFO  [DiscoveryAdvertisementNotifier] Leaving DiscoveryAdvertisementNotifier
2012-07-31 00:56:10,447 INFO  [EventSubscriptionExpirationChecker] Leaving EventSubscriptionExpirationChecker, removing all event subscriptions
2012-07-31 00:56:10,447 INFO  [EventDispatcher] Leaving EventDispatcher
2012-07-31 00:56:10,448 INFO  [DiscoverySSDPMessageListener] Leaving DiscoverySSDPMessageListener
2012-07-31 00:56:10,489 INFO  [DatabaseManager] Shutting down database
2012-07-31 00:56:14,605 INFO  [RendererExpirationChecker] Leaving RendererExpirationChecker
2012-07-31 00:56:17,935 INFO  [AbstractTranscodingDeliveryEngine] Cleaning transcode engine and its data
I guess one could use a gold old fashion flat config file to sort things out