HaloMods "Classic" Read-only Archive

There's something wrong with my Milkshape. I went to download it from the site (to remodel) and everything was fine. I installed it then started it up. It said "You seem to have registered after this copy has expired! Please run MS3D for at least 2 mins to complete the registration process!".Anyways, I went and imported my model, changed it, and when I went to save, I couldn't. It said "This version has expired! You cannot save your work anymore! Please register at http://www.swissquake.ch/chumbalum-soft/ to re-enable saving!". What do I do? I haven't had it for more than 5 min, and I haven't had it before.

well you clearly have had it before if it says the version has expired
i suggest reinstalling and looking for a (im not alowed to say)

I couldn't have had it before. I'm the only one in my family who's interested in this stuff, let alone be the only one who would get a program like Milkshape. I tried re-installing it, but that doesn't work.

reinstalling defintly wont work because it puts a hidden file on your computer so that it knows you have had it before. your pretty much shit out of luck

Then how do I remodel stuff?

3dsmax, gmax, blender, maya?

I can't import the models with Gmax, can't use 3ds max, and I don't know what the heck Blender and Maya are.