OpManager Distributed Edition (build 7502): Database maintenance and CPU-usage issues/problems

OpManager Distributed Edition (build 7502): Database maintenance and CPU-usage issues/problems

Greetings. We are running Distributed Edition of OpManager, build 7502, and are experiencing two issues:
  - Database maintenance is not working as expected (total DB-size of 18GB), even though Database Maintenance seems to be configured correctly (see attached image 006.png for setup, and 005.png for display of statistics from October'09 to February'10)
  - CPU monitoring claims 'no data available', but if I change the reporting period to 'Last month' (works ok), and selects one of the servers and then select 'At a glance report', CPU-usage displays fine for the last 24 hours. (See screenshots 001-004).

Do you have any information regarding what component is responsible for database cleanup? Also, if you have information as to which MySQL tables contain the acctual data and may be emptied manually (without destroying the setup), it would be much appreciated.

We are unable to upgrade OpManager because it's unavailable: ' The OpManager Distributed Edition (DE) is going in for a complete makeover. The new avatar will provide a uniform functionality across all OpManager editions with common service packs and hot-fixes. We are working on making it available before March 2011.' ( http://www.manageengine.com/network-monitoring/distributed-edition-upgrade-packs.html)

Do you have any updated information regarding the progress of remaking the DE edition?

In advance, thank you very much.

PS: We are running out of disk space on this server (268MB free)
PPS: There are of error messages in the log/-folder (stderrXXXX.txt) -- at least 12MB log files just from today:
[19 Jan 2011  13:53:58:417]  java.lang.NullPointerException
[19 Jan 2011  13:53:58:417]   at com.adventnet.nms.db.util.CollectedFile.dumpFiles(CollectedFile.java:70)
[19 Jan 2011  13:53:58:417]   at com.adventnet.me.opmanager.server.util.FileDumper$1.run(FileDumper.java:146)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.FutureTask.run(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[19 Jan 2011  13:53:58:417]   at java.lang.Thread.run(Unknown Source)

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