Problem with J105 Naite!! Please help ):

I bought an J105 Naite model here in my country (Venezuela) and unlocked it via OMNIUS. The problem is that I lost the facebook and twitter apps.

I've found tutorials about putting the jar and jad files under tpa/presets/custom/java plus a customize_upgrade.xml on tpa/prsets/custom but it just doesn't work. When I turn on my phone, it says "loading" but the apps doesn't appear.

And I want it like it was before, with the possibility of having facebook/twitter refreshing on your homepage and all that!

Please help ):
Thanks a lot!