Sorry about your meltdown Kenny.
Normally battery packs wired in paralell increase amperage, voltage stays the same, so if you took your 2 910mah batteries would give you 1820mah 11.1v pack. Wired in series would increase voltage but the amperage stays the same, so you would have a 22.2v 910mah pack, that would give the stock ESC about 20 seconds or less til it was toast.
I almost sure the stock ESC for the main is rated at 12 amps & the tail 4amps. Hooked up to an ampmeter the main motor draws between 9-11 amps at full load, be sure to clamp heli down before testing! Tail motor drew 3.6 amps at full load. As I've spoken about in other posts, fuse protection to the motors in a must for protecting the stock ESC from meltdown. It's also good to have on purpose built ESC's as well, better a 50 cent fuse than a $30 dollar ESC.

Rick