There's no need for special drivers, it should work. You must confirm with your operator that you have GPRS service enabled in your account (if you already access through your Nokia 9300 it is ok then), and you might want to find out what APN to use when connecting to the Internet.
I can surf web without any problem by the nokia 9500 by itself threw GPRS;so the configuration is OK(APN....)
I can also dial up a number from T3 via bluetooth by the 9500 (and send SMS by the palm T3).
the problem is when I want to to make a connection by the palm via bluetooth and GPRS....no connection between the 2 devices(phone numbers too long...)even after reading and configuring the palm according to your advice in bluetooth guide