Confused on how to actually install and use all these great maps...
 

Ok, I've dloaded about 12 maps from here and I go to install them and some have instructions, some don't. But, every map is named the same thing, and when i follow the directions, it asks me if i want to overwrite the "TDMM_01a.bms" or "b" or "c" depending on the name of the file. How do I know which map is which? I don't want to overwrite any of them, i just want them all installed to choose from like other games out there.

Anyone have a clear explanation for installing and organizing these maps so I know what is what?

Thanks!