change encoding

Hello,

I have installed a new postgresql server and I need to recover an old database on it.
The database I have to recover has LATIN2 as encoding and when i try to restore it into the new one I get error messages due to encoding.
I have read that from pgsql8-3 is not possible to have different encoding and since by default the encoding for postgres is UTF8 my doubt is how can I restore the old database with no errors.

Thanks in advance.