Don't worry, Reflux and Riptide crashes on windows 7 64 bit and windows 8 64 bit, I currently have windows 8 (which you hate) but a few days ago i had windows 7 64 bit and tried all your methods while having window 7 64 bit but Reflux and Riptide crashes on windows 7 64 bit anyways. It's normal they just need to update their hacks. But Riptide did had a lot of problems. (Tried over like 3 Riptides versions aka 2.2, 2.4 etc...)
So Flengo said he's making a loader for a new hack. Reflux people just have problems with that on windows 7 64 bit, i did and other people did as well. Maybe on Reflux's you try all the methods he/she said on the hack first page but i tried most of them, just didn't all of them.