lookyj,

here is something you might find useful if you want to keep that pack.

It's an adaptor that converts lipo TP balance ends to the JST balance ends that the eflite uses. Only $3 bucks =)
http://www.commonsenserc.com/product...products_id=85
or
http://www.commonsenserc.com/product...products_id=89

Or if you are handy with soldering, you could just put a new JST balance end on the pack, of course, just make sure that you insultate the ends so they don't short or you could have a fire on your hands
http://www.commonsenserc.com/product...products_id=92

here is a JST connector that you could solder on as well.... I think this one is a bit pricey, because I can get them for less than half that at my LHS
http://www.commonsenserc.com/product...roducts_id=236

this is what you really need =)
http://www.heli-fever.com/product_in...products_id=84