Timeline for Suites are:
Nokia PC Suite 1-7.1 -> Nokia Ovi Suites (1?)-2-3 ->Nokia Suite 3.2.64-3.8.54

My testing report (in year 2022):
I found official Nokia information that Nokia PC Suite 7.1 should work with N900, but when I tested with latest Maemo it didn't work well, so I think it was for early Maemo 5 versions. After Nokia PC Suite 7.1 comes Nokia Ovi Suites. I tested version 2.2 and I tested, but not good (although it should work with N900). After that comes Nokia Suites and I tested version 3.8.48. It worked, but it was very very slow (I had over 19000 SMSs).

Hint for installing Nokia Suite 3.8.48:
It might ask Verisign Primary Intermediate CA Certificate, dig it from archive.org original link was:
http://www.verisign.com/support/veri...ate/index.html
Save it as plain text file with .cer extension.
Then import that .cer-file into Windows with right click on .cer-file and select Install Certificate from the menu.

And I would only install it in PC that is offline from net.

EDIT: just fixing english