My mounted Bower flash for my Nikon Camera D3000?

For some reason it is not working… It ran out of battery's and so I put new ones in and it still won't work… I even bought some more new battery's for it and it still won't work.
Please help me! I need to use it in about 3 hrs so it would be nice if someone told me what to do…
Thank you in advance
Oh and I'm using AA battery's which is what the manuel told me to use.
please no trolling or rude comments.

One possibility could be that your camera is in a scene mode that won't trigger the flash. Try P, A, or M and see what, if anything, happens. If you are in M don't use a shutter speed faster than 1/200th second. If the TTL is communicating with the camera, it shouldn't let you, but that might not be working with the Bower.

That's if it is a compatibility issue. Is the flash just not coming on? Are All the batteries fresh and new? One dud in the bunch could make the flash not work. Are all the batteries oriented in the correct position?