Among other things.
I didn't make it!
I got a problem with gtkradiant i downloaded the 1.4 and delete the 1.3 but if i try to instal it says the contents of this file cannot be unpacked. The executable you are attempting to run has been corrupted. PLease obtain another copy of the file, verify its integrity, and try again?
Look in the Master Sticky and download 1.4.0 from the link in there (it leads to EFFiles, but it's compatible with JK2 and JKA).
I don't know how, and I don't know why, but this is totally Sheep's fault.
get it from www.qeradiant.com (official site) v1.4.0 for raven games.