What to do when seller does not send item paid for


Hi I recently (about two weeks ago) purchased a pair of cables from a seller here on AG. The seller said he would be sending the cables out right away. I paid him with a money order. Here it is two weeks later and I have not heard a word as to whether he even received my money (I'm sure he did). I e-mailed him many times and left voice mail messages on his cell phone telling him I was concerned and he hasn't responded back. His email address is hotmail. I hate to think I have been scammed. They really should have been here by now if he sent them. He is only a few states away. I know sometimes things take longer than expected in the mail but the fact that he hasn't contacted me even once really concerns me. What should I do??
musicmannj
The first time I made a purchase from a private party on Audiogon, the kind fellow told me to wait until he supplied me with a tracking number before I send the check. It was a great first expeience, I hope everyone else he's dealt with since appreciates his trust and honesty and doesn't take advantage of it.
Thankfully, I have not have any money problems yet dealing with Audiogon members. The only real problems I've had is been that the items do not match the rating description.
Regarding delivery time, to all fairness, I have to say that I have sent a great number of packages using USPS. After a long learning process I found out that all what it takes is to send the package priority mail and to add a delivery confirmation notification to it. This is a 45 cents option to any package but is well worth it. The packages arrived within 2 - 3 days without any hiccups. (BTW, I'm not involved with USPS in any way, shape, or form and I do not get any money for this endorsement.)
I had the experience of an ag dealer screwing up (not having) an already paid for order. When I told them I was going to post a negative feedback they posted a dispute (using foul language) thus freezing the feedback post. Ag found no fault (since they sent a refund--but I had wasted a USPS MO and time in replying to the dispute) and as a result ruled NO ONE could post--they won! Look at the number of dealers on ag with 1 or 2 negatives and 500 positives. Hard to believe, this is why. I resigned my membership.