Firefox_Portable_2.0.0.7_en-us.paf

My guess is it was never released if you can't find it in the SourceForge downloads (I don't see it either). There was a short period when the releases were delayed around here back about a year ago, but things a flying now. 2.0.0.7 was just a minor security fix, so I don't think it's a huge issue testing-wise. If you'd like, you can try pulling the Firefox 2.0.0.7 binaries from a local install and replacing the files in the App\Firefox directory (remove old ones first).