Doing a bit of cleaning up I notice in Control Panel-Add or Remove Programs that it lists JSE Runtime Environment:
5.0 Update 6, 5.0 Update 9, 5.0 Update 10, 5.0 Update 11, 6 Update 1 & SE v1.4.2_03.

I also see that Firefox 2.0.0.1 is listed. I'm currently using V. 2.0.0.3. These all take up space on my HDD. Can any of these be removed, or do the latest versions need the earlier ones?

Thanks