I have started to upgrade my site to drupal 4.7 on a test site and I am having some problems despite the fact that I tried everything I read in the handbooks and on the forums. since 4.7 is still a beta, I am afraid this place isn't the right spot to discuss such issues? please guide me. I can give detailed discription if needed.

p.s. I am upgrading from 4.65 after disabling all the addon modules and themes.