Before to move to the bitcointalk domain, the forum with the same SMF was on bitcoin.org/forum (or something like that, if I remember correctly) . That was the first transition from sourceforge to SMF. Seems that the database was moved to the new domain so that's why you can find the posts prior to the domain registration date.

I do not have a PC around me but if you check the wayback machine you'll find all you need to know.
If you want I can  check it out tomorrow