I could not upgrade to Oulipo 188.8.131.52 (in Firefox 3.6.13 and WordPress 2.9.2) from Oulipo 1.0.6. However I tried it, I got a blank screen. Tried installing it on a different blog that didn't have the Oulipo theme present and got a blank screen there too. Tried other new themes but they worked fine. Had to use FTP to delete the new Oulipo theme to regain access to the site.
Am I doing something wrong? Is there a known problem with this version of Oulipo? For plug-ins I have only a SEO and statcounter.