You can get it over at it's Google code webpage.
HeeksCAD is always my 1st suggestion for a solid modeler for several reasons.
-It will run off a Thumb drive no problem
-It's GUI is dead simple easy
-It can handle all the major file formats (iges, dxf, jpg, stl, step, & svg)
-They don't make you jump though hoops to get it, just go there, download, and your good.
If you just need to design a part to print, and don't want to have to spend hours learning how to program 1st, or spend $50-$3000 on a design program which has lots of features you just don't need, well this is the program for you.