????? problem after import

[Ba$im]

hi
I have 2 forum both of them vbulletin 3.7.0
also both of database using utf-8 colloation

one of them is about 1.2 GB
and the second about 124 MB

I did import user , thread , usergroup , forum

while it import I see threade title look like this ???????????

anyway after finish I clean impex and update all counter
then I go to the forum and found all new forums which I import it look as ?????

same thing with user

but also not all user import I check the database from phpmyadmin I have 60 K users on the defualt vbulletin and on the new have 4 K users
I just when check user tables via phpmyadmin saw around 10 user import only!!!!

while he told me he import it all


I need help to make this clear


also does jelsoft offer paid service for impex?

thanks in advance