I just issued the order to erase my stolen Ipad without reading the instructions. will i still be able to lock and locate it afterwards and if not how do I kill the erase order so that I can locate it when it comes online?
You won't be able to use any of the features of Find My iPad once your iPad is erased. Unfortunately I also don't think you can reverse the remote erase command either. You would have to try contacting iCloud support to see if they can do this; there's no way for you to do it yourself.