I have Eclipse 3.0 installed on my Linux partition. I downlloaded the M2 build by following the M2 link at the top of the page at
http://www.eclipse.org/vep/ . I also installed the matching GEF and EMF iages before installing VEP. Once I did this and restarted Eclipse, it worked fine. I had some initial confusion since I just started the editor without reading any docs. My only problem was not being able to find the palette wth the swing classes, since it was tucked into the right hand edge of the editor window. Once I figured taht out, everything was fine, although sluggish.