I don't know but this app has never worked for me. I've recently bought N900 and I never managed to watch a flash video on any site. I'm currently running PR1.3 and have upgraded this app for PR1.3. When I start the app I get this error.
Flash plugin file size mismatch (6723876 vs 6732516). I have set the version to Linux Desktop 10.1.53.
If I go to youtube, All I get is "plugin content" instead of the flash video.
Anybody know how to fix this?

Your PR1.3 upgrade might be incomplete (the file size mismatch means that you're trying to run the PR1.3 version of the app against the Flash shipped with PR1.2). Another sideeffect of this is that you might see green lines in some videos that worked fine previously.
On the forums many users seem to have been able to solve this by reinstalling the flash plugin (as root from the console)
apt-get install adobe-flashplayer --reinstall