We recommend that you use the update site for your downloads. It's easier to install and allows you to stay up to date with the latest versions of SWTBot using the eclipse update manager.
SWTBot comes in two flavors, one that works with SWT and one that builds on top of SWT and works with Eclipse.
If you are a plugin developer you should be downloading 'SWTBot for Eclipse Testing'. If you don't know what that means, you should be downloading 'SWTBot for SWT Testing'
Supports Eclipse 3.5 (Galileo)
Supports Eclipse 3.4 (Ganymede)
Test Coverage Results for SWTBot
Test Coverage Results for other plugins
JUnit tests for SWTBot
JUnit tests for SWTBot For Eclipse testing