I'm dying for a module like this because if the strong fluctuations.. it only works if the standard valuta is USD - but mine has to be EUR.. I recon it's not too difficult to fork this module for the european market? I emailed the guy, and I just hope someone can explain me how to do it sooner rather then later

Hey, sorry I didn't get back to you when you emailed about EUR support. I integrated it and then couldn't remember what e-mail address you contacted me through or if it had been a forum PM or whatever so I couldn't let you know I had gotten it working.
As for everyone else, if you're still having issues with my extension, email me at
support@btcgear.com and I'll see what I can do. I can make a test site and/or test bitcoind server available to one user at a time which can make troubleshooting much easier.