This was on their home page.
"Feb. 19/08 - I'm back at it again after a vacation this past weekend. Some updates: On the good news front, someone has reported to me that they were able to jailbreak a 1.1.3 iPod touch using iNdependence 1.4 beta 2. On the bad news front, the biggest source of problems with 1.4 beta 2 seems to be with the RAM disk creation stage. If you are having problems: open up Finder, right-click on iNdependence.app, select "Show Package Contents", navigate to Contents/Resources/, delete the file named "ramit112.dat", then run iNdependence again and try to jailbreak. When I get some time, I'm going to put better error checking (and status information) in the RAM disk creation stage. That should alleviate some of the nastier problems people are encountering."
Good Luck!