I'm trying to download the main RF install file and failing miserably.

Finally, I decide to go to my mom's work where there's a decent internet connection and try downloading there. I click on the download and it downloads in literally a fraction of a second. Suspiciously fast, I'd say, but ok. Maybe that's just an internet connection w/ superpowers or something. I bring the file home, dubble-click it and:
WTF? I check the file preferences, the instal file is 263Kb, instead of the 13.# MB that the download page claims it is.Setup files are corrupted, please obtain a new copy of the program
What's going on? 0.o?