Winterboard from Cydia. HOWEVER, Winterboard has not kept up with iOS4.2.1 changes, so parts of your themes won't work without some manual intervention.Im a noob at this so trying to get all the info before I go through with it. Do you guys use winterboard? Or you use something else?
I will be using a windows 7 pc by the way.
Also I'm on a tethered jailbreak.
You can jailbrake it using Redsn0w, but it's a bit finicky. I did mine recently and it didn't go without a fight, but it went. It will also be tethered.so what will work good with 4.2.1? nothing as of yet?
My iphone 4 is on 4.2.1 jailbroken and not tethered.
Your the first one I heard of having IP4 & 4.2.1 with untethered JB. Pretty sure, everyone would like to know how you did it.
So how will I go about installing a new icon for bitesms and any other icon? Do I have to replace both of these things? or just one?
The untethered jailbreak is available from the dev-team in beta. Lots of people have used it, but it s not without problems. Most notably Bluetooth is disabled. Also you can't use it without 4.2b3 blobs at the moment.