Originally Posted by ferndchamp
I believe I am rooted and I wanted to know how to install a custom rom. Do I need to unlock the bootloader, and will this effect my unlimited data? Thanks in advanced?
You cannot "unlock" your bootloader. There is an exploit that you can use only if you have the MDK or earlier firmware. If you do not have the MDK firmware, you'll need to install Safestrap.
Read these two threads...
... which should answer most of your questions. Then go to the developers forum and pick a ROM. Read the posts to figure out how to do various things and what problems people are having. I've been on Hyperdrive since version 13 and have had no problems at all.
Nothing you'll do will affect your data plan