Hello!
I'm sorry for my english, but I am italian.
I have used Ipb Converter and I have converted SMF data (forums, topics, etc.) in IPB Data.
Now my IPB has saved SMF data but I can't view Forums.
There are categorie, but are not forums.
How can I resolve?

I believe you have to change your forum permissions. Try that and if they say that they can be viewed "save" it anyway it will work.

I'm afraid we don't provide support on these forums, but please feel free to submit a support request to the Client Area (http://www.invisionpower.com/customer) or IPSBeyond (http://www.ipsbeyond.com).

Thanks!