Thank you for the assistance... but it's all just wired!
I transfered the SF 3.2 porject from a win 2003 server some days before to a 2008. before transfering the domain of my customer i tested it with an other domain to avoid a not working site because i was not sure how to configure the website on IIS 7.
First evrything was working without any complication and the sflb and tmb extention are even configured in den web.config file. Than today, when i relogged to the admin erea the thumbs in my image galleries where gone... ok that was even wired engough but even more wired was that suddenly a normal page was just showing the naked template while the two other language versions of the page wehre still working.
so i'm not sure whats wrong... i allready deleted the site in IIS 7 and reconfigured it... but the problem is still there?
what else can I do?
i would even upgrade to SF 3.5 but there ist no upgrade patch in my client erea.