hi, sorry if this sound stupid (really a noob in hp lah)

i'm using sony z610i (maxis) & i just wants to ask abt maxis 3g wap & maxis gprs wap, is there any differences or it's the same thing??
do i need it??
if it's different then how do i get this setting??

it's because i don't have the maxis gprs wap but i saw this setting in my friend's hp (same model)

1 more question (a bit out of topic) i've tried to download opera mini into my hp but it said "failed to connect to the internet", why is that???

sorry for the long post & thanks in advance

ok, thanks