(stealth sim) 1.1.2 to 1.1.4

Hi guys,
jst a couple of noob questions :P

I hav 1.1.2 OTB and unlocked it via stealth sim. Now I want to upgrade to 1.1.4.. b4 doing tis do I need 2 get my vodafone sim and stealth sim out of d tray and folow d unlock procedure??

secondly, d iclarified tutorial says b4 unlocking, restore to 1.1.4... I hav downloded d 1.1.4 firmware.. So do I jst conect my ifone 2 lapy, turn on itunes and instal d new version and folow d normal unlocking tutorial??

thirdly, this question not conected 2 ne of d above..
Can I chg mu carrier simcard?? lik me using vodafone now.. can I jst tak it out and replace wit sim card of anothe carierr or do I need 2 do sum seting??

administrators.. these mite b stupid questions.. so pls do not delete my thread.. I wil do it on my own once I get these answers..
thx a ton :)

Hi, start reading this: New to the Forums?/ FAQ for 1.0.2 and beyond. Updated

regarding to your questions:
1.- You can use your own SIM card, no problem at all
2.- Yes, but DFU first and then restore it. If you don't know what DFU is, just use the search function here.
3.- That's why its called "Unlock". You can use any SIM card you want.
Good luck