After 7 months I'm finally back.
I've migrated dasBlog to wordpress. It's not trivial but did happen in only 2 days. I've lost one blog post and 2 comments. There was a lot of manual work with fixing links. Ironically the slowest thing was to wait for Windows 7 virtual machine (windows wanted to update which was a couple of hours of work and couldn't be avoided).
Windows 7 was required so that I could add some forwards from the old posts to the new ones (via powershell).
Update: The most important help I got was from http://www.aaronlerch.com/blog/2007/08/23/breaking-up-moving-blog-engines/ and from Mario. Thanks.