I actually have Creative Writer, Fine Artist, and 3D Movie Maker, and I actually still have the discs to the former two, but I'll be buggered if I know where the 3DMM disc is, and all my movies are probably on ZIP discs that I'll also be buggered if I know where they are. They all consisted of Cathy Scratch going into outer space, and the plot was based around whatever Simpsons and miscellaneous sound clips I dug up on the Internet. I think they'd be pretty hilarious to look through again.
And yes, the basement was horrifying. The worst for me as a kid was that booming "EH HEHHHH!" you would hear when your first entered it, not that McZee taking a shower in the dark was any more calming. I seem to recall you could go to the top floor through the basement and vice versa.
By the way, you could click the fire pole in such a way that instead of going up or down it it would do weird things like twist into balloon animals, and sometimes McZee would slide down, even though he's also standing in the room.
Also, I don't know if it's intentional or not, but on the "master of disguise" animation, when it goes to a new image it leaves an outline of the previous McZee, and it eventually looks like scribbles on the images.