I have the following problems after purchasing the ultimate

Hello,
I have the following problems after purchasing the ultimate facebook plugin.
Namely, in the case of members of the Polish in their nicknames cut Polish characters such wit, S, C, for example, instead of
Luke shows> Luke.
The second issue, how can I change the login taken from facebook was only the first member - named so instead
Lukasz_Dobrakowski> make it Lukasz (cut _Dobrakowski)
Another question avatarów.Czy is any way to change that avatars were collected and more intelligent than the current cut - narrowed or stretched?
Is it possible to retrieve both the user name and signature?
Ultimate Facebook plugin.