Help im new anybody can help thanks

[mr.glaxyS]

okay this the deal i had iphone 3gS jail broken but did update now cant get it unlocked dosent work with my sim i no haha i got itouch now jail broken but no unlocked anyways pretty okay when come too these sorta things(kinda) anyways hopping anyone can help me went out bought my self galaxy S pretty nice thing is i want make it nicer i did sum research but wondering what best update exploit(root) thanks im on 2.1update`1