where to get MASM 6.11

seriously, where the fuck can you get this thing? not on any of my bookmarked torrent sites, nothing on rapidsearch. I need it for my Computer Engineering homework, and i'm tempted to just get the 32bit version, but won't there be significant differences from the 16bit version (which is what we're supposed to have)?

we weren't told where to get it, and we weren't supplied a copy. i've been to every class. i want to use MASM 6.11 because that is the version we're supposed to use...