Last Updated: Jun 08,2010
My old phone is Samsung T819 on T-Mobile Prepaid.
Did you try Bitpim? You should be able to download your contacts from the T819 with Bitpim into a .csv file, then import that file into your Google contacts which will then sync to your phone.
Bitpim (this is free software): http://bitpim.org/
Import contacts from .csv on Google: http://mail.google.com/support/bin/answer.py?answer=8301
Separate names with a comma.