ok, i managed to overcome this by recreating the web.keystore file.
I can login, however when i try to activate any new user, the user does not get any email. in the MAGT log file i can see these entries:
[30000] (11/25 02:25:17.780):{0x3164} [ENV] Failed to read 001e6602 reg value from the BlackBerry MAPI profile.
[30000] (11/25 02:25:17.780):{0x3164} [ENV] BlackBerry Mailbox Agent 1 - BESX Version 5.0.0.136
[30000] (11/25 02:25:17.780):{0x3164} [ENV] BES Service Name: BlackBerry Mailbox Agent
[30000] (11/25 02:25:17.782):{0x3164} [ENV] BlackBerry Dispatcher: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\BlackBerryDispatcher.exe, Version: 5.0.0.126
[30000] (11/25 02:25:17.782):{0x3164} [ENV] BlackBerry User Administration Service: NOT FOUND
[30000] (11/25 02:25:17.783):{0x3164} [ENV] BlackBerry MDS Connection Service: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\MDS\bin\bmds.exe, Version: 5.0.0.93
[30000] (11/25 02:25:17.783):{0x3164} [ENV] BlackBerry Database Consistency Service: NOT FOUND
[30000] (11/25 02:25:17.784):{0x3164} [ENV] BlackBerry Policy Service: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\BlackBerryPolicyServer.exe, Version: 5.0.0.119
[30000] (11/25 02:25:17.786):{0x3164} [ENV] BlackBerry Synchronization Service: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\SyncServer\BlackBerrySyncServer.exe, Version: 5.0.0.122
[30000] (11/25 02:25:17.787):{0x3164} [ENV] BlackBerry Router: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\BypassRouter\BlackberryRouter.exe, Version: 5.0.0.126
[30000] (11/25 02:25:17.788):{0x3164} [ENV] BlackBerry Controller: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\BlackBerryController.exe, Version: 5.0.0.136
[30000] (11/25 02:25:17.789):{0x3164} [ENV] BlackBerry Alert: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\BESAlert.exe, Version: 5.0.0.117
[30000] (11/25 02:25:17.791):{0x3164} [ENV] BlackBerry Attachment Service: C:\Program Files (x86)\Research In Motion\BlackBerry Enterprise Server\AttachServer\BBAttachServer.exe, Version: 5.0.0.54
[45060] (11/25 02:25:17.791):{0x3164} {ConnectionPool::ValidatePool}: Pool is not initialized
[30000] (11/25 02:25:17.791):{0x3164} [ENV] [DB] SQLServer hostname: AEDUDC2\BLACKBERRY, Database name: BEScnf
[30480] (11/25 02:25:17.791):{0x3164} [CFG] BES failover mode is ACTIVE
[41120] (11/25 02:25:17.791):{0x3164} [CFG] Address Lookup is enabled
[41122] (11/25 02:25:17.791):{0x3164} [CFG] LDAP search is disabled, LDAP PIM search is disabled, LDAP ALP search is disabled
[41123] (11/25 02:25:17.791):{0x3164} [CFG] Using up to 10 external CDO Helpers in keep-alive mode
[41124] (11/25 02:25:17.791):{0x3164} [CFG] AddOwnerApptID is disabled
[41125] (11/25 02:25:17.791):{0x3164} [CFG] SetLocaleIDs is disabled
[40532] (11/25 02:25:17.791):{0x3164} [CFG] vCard conversion support has been enabled
[40892] (11/25 02:25:17.791):{0x3164} [CFG] GlobalRescan config: messaging
, calendar, pim
[40000] (11/25 02:25:17.791):{0x3164} [CFG] MAPI Encoding is 1
[10277] (11/25 02:25:17.791):{0x3164} BlackBerry Messaging Agent SISBES Agent 1 failed to start. Error code 5305
[50106] (11/25 02:25:17.791):{0x3164} Stopping BlackBerry Mailbox Agent 1 for Server SISBES
[30000] (11/25 02:25:17.791):{0x37FC} [DIAG] EVENT=Register_thread, THREADID=0x37FC, THREADNAME="TimerThread"
[40000] (11/25 02:25:17.791):{0x37FC} [DEBUG] EVENTMSG="TimerThread thread started"
[40507] (11/25 02:25:18.687):{0x179C} ExtUDPLogThread: Code on closing = 0
[30000] (11/25 02:25:18.687):{0x179C} [DIAG] EVENT=Unregister_thread, THREADID=0x179C, THREADNAME="ExtUDPLogThread"
[30065] (11/25 02:25:18.693):{0x3164} BlackBerry Mailbox Agent 1 for Server SISBES shutdown complete
