If you go on one of the the SMPS Archive threads (Spanner's _____ Voices for example), you'll notice that the source thread is completely broken (assuming because of the new update). Can someone please fix this?
I unfortunately don't have any of the relevant data associated with the SMPS archive. Best thing you can hope for is that the original uploaders re-upload their content.
The forum wasn't meant to be visible. Probably became visible during my re-working of all the permission masks. The forum is now hidden again.
All the instruments are available here. If that's not enough, here, have a gigantic RAR file filled with tfi and mvs instruments, supported by most *-to-smps programs.