be careful who you trust!

Well, a few weeks ago i posted an add for my electric guitar on Kijiji for sale. I had a quick reply from someone who was very intersted in buying it from me, so after a week or 2 of writing back and forth, i was sent a money order cheque for 2500.00$ i was told to take out my money for the guiart and then i was asked to send the rest to anohter guy who was also buying something from this man so he would be paid. I thought it seemed a bit strange but i have never done anything like this so i didnt really think anything of it. I sent the money, and was awaiting someone to come pick up my guitar. I checked my online bank today only to find out that the cheque was fake and i now owe 2500$ to the bank to make up for the fake cheque! after many tears, julian and i went to the bank to see what was going on, and were told that there was nothing they could do, that we were just going to be out that money. We went all over to the bank that cashed the cheque for us and they also told us it was our fault and that we owed taht money back to the bank. All my accounts have been frozen and will continue to be until i pay this off. We still felt as if we were being just shoved aside so we called up julians mom who came down with us to my home-bank. we talked for a good long time to the manager who siad she will see waht they can do, but she really has no idea what will happen...i guess this is teaching me a good 'trust the lord' lesson but i gotta tell you, im not liking the way i have to learn it very much. we would REALLY appreciate your prayers through this whole ordeal...i always knew it would suck to be conned, just didnt realize the extent of it. thanks for your prayers though. We will let you know how it all turns out.