Thank you Jens,
As far as I can see and understand Ubuntu 10.04 is not supported in pasgui's repository.
I also tried to get codeblocks from the Synaptic in 10.04 (it refers to codeblocks 8.02 which I think is quite old). I can get the splash screen to appear, but then it just exits.
I have been using codeblocks for nearly two years and I need it now.
What can I do to get it running on 10.04? If it comes to a crunch I could even recompile it from source (which I have never done before), but is that going to work?
If not, what other options do I have to get codeblocks back?