Can only suggest you start again ... fresh.
Ergo: Get rid of all your Java installments. As you seem to have multiple. Than only install one Java version. (6 Or 7 And 32bit Or 64bit)
And than try to run the right (32bit Or 64bit) Ender client with that Java installment. (With a bat file located in that Ender client folder.)
EvilAsh wrote:Also, not too concerned that you have my name
... That still might change (He said in a ominous voice) ...