Alternatives to QuickPwn?

I downloaded quickpwn and chose this guide [ http://www.youtube.com/watch?v=zeERHnvHTyY ] to walk me through the process of jailbreaking my iPhone 3G. The only problem is that when I open Quickpwn it will not detect my phone. Is there a reason for this? Any help is appreciated.

Also, this may be a stupid question but I was wondering how or where I could get the theme he has on his iPhone in the video?

 

hold down power and home button for 30 sec
then i tunes will work

 

or you can do it even an easier way
Easy way to upgrade to 2.2.1 using Custom Firmware

 

i've installed quickpawn and followed the instructions..buh when the message comes where we have to choose " install cydia" "installer"...but i cant have the option of unlock iphone..help me please