Well, I still can't open the larger photos thanks to the daft encryption used. The 'having difficulties' link just goes to some site which appears to be a bitch fight between "I hate Bill Gatres" nerds and others...
Chaps, if the vast majority (apart from geeks) use Windows - and probably WinXPSP2 - doesn't it make sense to make your pictures compatible if you want them to be seen?