I'm having problems with compatibility. A lot of the things I download that other people make (I've downloaded 3 projects, 2 apply to this problem) just won't open up with the version of RMVX I have. I downloaded it straight from the RMRK main site, and it's legit. WTF? D:< For one thing, all the "Data" folder files have .rxdata as their extension whereas mine naturally have .rvdata. And just changing extensions doesn't fix anything because the problem remains.
I think another problem is that the scripts (even the RTP ones) aren't written exactly the same...