Tekkit is not working.

[Chrisitan]

I have tried everything I can to get technic working on my mac. I have uninstalled java 7 and installed java 6. (the java website says i have 6 but the terminal command "java -version" says i still have 7) I load up the launcher just fine and once all the modpacks load and it takes me to the loading screen right before the mojang it stays white for 5-10 seconds and crashes. I really wanna play tekkit so if i could have some help on getting it working that'd be fantastic.

[Chrisitan]

also i am running mountain lion not snow leopard