Hey Buddy, If you have JB 1.1.3. If you hold down one of the Icons for a couple of secs they should wiggle. If they do not wiggle then you are not jailbroken properly. Thats the first thing. If this is the case, connect to iTunes and do a restore, if not upgrade to 1.1.4 using iTunes.
Then go to
www.ziphone.org and download the Break from there. Unzip the zip file on your computer. Follow the instructions in the Ziphone folder. you will see a text file.
Then do the break. I think the new version installs some basics. Like BSD Subsystem, openSSH etc. If not once you have JB and have the installer. Install the Community Sources. Install SSN and Openssh. Also install Summerboard. This allows you to scroll from screen to screen Right And left.
Once this is done your Icons should wiggle. Test and move them around. Move to the far right and it should shift on a new screen. Let go. New applications will appear on the screens going RIGHT. On web sites. Hit the Plus sign in the Middle botton and you can add WebApps and Bookmark Icons.
Hope this helps you.