every time I try to save a module now, MPT crashes, and the saved files didn't save properly, only channels 1-4 exist in the saved file, it doesn't matter what I name it or whatever it always errors out "OpenMPT has stopped working"
Can you please try if replacing mptrack.exe by this version (http://sagagames.de/stuff/mptrack.exe) fixes the problem?
yes, that fixed the problem, can you tell me what's different in this?
My guess is that you just accidentally stepped into this bug (http://bugs.openmpt.org/view.php?id=142).
how does replacing the .exe fix that problem?
Uhm... pretty obvious? The new exe contains a fix for this (and other) problems.
does this fix the random crashing during mp3 exporting? I've experienced this in ever version of MPT I ever used...
Yes (http://bugs.openmpt.org/view.php?id=97).