Numpad key problem

So i've been on this site for a while now, and hacks have always worked great. I have been using Xipher's new hack, which is great, thank you Xipher. But i have a problem. All of the hacks that have anything to do with numpad dont work. I have a keyboard and use the numpad, but the keys dont work. Num lock is off and i can do the crash server hack with the end button. But when i use the numpad it doesnt do the numbers, it does insert, and the arrow keys. Please help me and tell me how i can change the keys to make it work/make the numpad work effectively, cuz i really want to use some of the good hacks. Thanks again for the hack, Xipher, and thanks in advance to whoever helps.