Thats true Novice.
I'll leave my post here as it is. I speculate that there is a money transfer issue, or perhaps email issue between the vendor and the author. They have both been emailed from me now, I will wait and see what the result is.
As paypal does not insure software sales, I cannot request arbitration from them. my only effective means of applying pressure is public censure.
I have requested in email that they(either the vendor or the author) straighten out the issue, or that I be refunded.
That was at the 7 day point. I am now at 9 days and still awaiting either my software, or a refund, or even a return email from either party. I could have written my own particle generator in that time. In fact, I may do just that.
If I have not heard from them by monday night, I will explore those other forums and attempt to contact that way. I am more than willing to make an ass of myself to protect my community.