Newbie question

[Psyduck]

OK, I just got my xbox chipped, and have managed to run evox on it from a dvdrw, and got mame and a few roms on there, which i can get going. Although the menu in mame doesn't seem to work quite right, but that's not my question.

I'd like to have evox dashboard when I boot up my xbox with the chip on, but I want to be able to play xbox live. The instructions/tutorial for evox talks about copying it onto the HD, but I don't want to get rid of the old dash so I can get on xbl. Or will replacing it not make any difference to games?

I could keep loading it off disk, but my xbox doesn't seem to like it too much, and only loads it one in 5 goes...

So, in a nutshell, can I have evox dashboard on my xbox and still play xbox live?