thank you, I know this way, but i'll loss all threads posted and all members registered after upgrading!
can i copy all data from vb4 to vb3 ??
Do you mean to do a downgrade manually? That is possible but extremly difficult.
If you don''t mind loosing the passwords, permissions and a few other settings then convert to a third forum and then convert back to vb 3x.
I have read a few posts where the downgrade could be possible via the Impex package. You might want to give that a try. Or go to vbfans.com as there I have read they have a dongrade script but it is paid I believe.