If you are this lost, you should really read the hundreds of guides on here.
This is a problem with ZiPhone.
It has made jailbreaking so simple that people are no longer learning the more complex skills they will need after.
To the OP, I suggest looking through the manual jailbreaking guides, and catching up on all the jargon.
On the plus side, ZiPhone has made these forums a lot more entertaining to read...."ZOMG cn u help me h4x my neighbor's Wii w/ my iTouch so i can dl all his vc games????????ANYONE??????!?!??!????" 😀