Well, for some reason, works on my third try with Google Chrome. I don't understand, download never completes on Opera, Firefox, Midori (didn't try IE).
It's possible that you downloaded a corrupted file. Do you tried in any other browser?
About the "SMPRGRevolutionV1.1a"...
Why this file is a RAR, not a ZIP as the others? Why not ZIP, since the emulators can load a ROM "ZIPed"?
Isn't the name "SMPRGRevolutionV1.1a" wrong? Since the ROM inside is "SuperMarioRPGRevolutionV1.1a". And I think that a name more intuitive for the ROM would be better, something like "Super Mario RPG Revolution V1.1a", no?
Just suggestions.
Cheers. o/