Minecraft how to redownload 1.7.4?

I was messing around with my versions and stuff on minecraft and somehow 1.7.4 is now 1.6.4 while it still is titled 1.7.4… I usually play on a hacked client so I very rarely play on regular minecraft, I was trying to install a mod and you need to modify the latest version (1.7.4 ) but it when I got on it was 1.6.4 and I could tell right away because packed ice melted all over my automatic melon farm. Because packed ice wasn't in 1.6, and the 1.7.4 file doesn't seem to be anywhere. It must have gotten deleted somehow… So my question is, where would I find the correct 1.7.4 client to download without completely re-installing minecraft?

https://energy.ci.cloudbees.com/job/MCFreedomLauncher/lastSuccessfulBuild/artifact/target/ there. New client, opensource and better then most of em now adays, I recommend you download the.jar