For those having a similiar issue:
For now I got it to work with virtualbox. Counterintuitively the xp vdi boots up rather quickly - something like 40 seconds... should be shorter with suspend.
Now - the windows still aren't rezisable because the bottom of the windows isn't visible and I don't know how to push windows over the top of the screen if this is even possible in XP. Partypoker has a "cascade tables" option that resizes multiple tables to fit the screen. Unfortunately that feature is disabled below a resolution of 1024x768. So I set the virtual machine to that resolution, start two tables, click "cascade", and then switch into seamless mode. Not the most beautiful solution, but since I rarely play one table, and two table are manageable even on the eee, I'll take that for now..
The question still remains however.
I'm positive that a compiz plugin should be able to do it, I just don't know of any that do it.
Last edited by oskar; 06-11-2008 at 03:49 PM.