Root Which root?

[Ezygroove]

Hiya people! please be kind this is my first post.

I've recently purchased a galaxy portal and rooted it.

Just like to know whats the latest root or firmware for my phone?
I've looked around and are getting confused with which one to use.

Model Number Gt-I5700
Baseband Version I570EXXJC1
Firmware Version 2.1-Update 1
Kernel Version 2.6.29 Leshak@i5700-dev7 #65
Build Number Leshak's Kernel v.LK2.01.1

Also What is baseband version?

Thanks in advance guys!