I fixed the bogus problem and now it should work fine. It was because I did a modification (on the new redesigned site) that the current version links should always point to the latest version (in case external sites link directly to them).
I hope this helps. Also, my apologies for those who tried to upgrade to XMMS plug-in 1.06 and did not succeed (maybe most of you thought that it was a server specific error, but you should reported it to me eariler).
You can find OptimFROG at http://LosslessAudioCompression.com
Florin