eBay delivery question

All,

I recently won an auction on eBay for ... you guessed it another bloody 
transmission.  It was a good price but between the price of the 
transmission and ****pping it's still a decent piece of change.

The seller was paid via PayPal two weeks ago Saturday, and they left 
positive feedback, but the transmission still hasn't arrived.  Saturday 
I sent a note inquiring if there was a holdup and asking for a tracking 
number, I've yet to get a response.

The seller is a "Power Seller" with over 1300 transactions and a 99.4% 
positive rating, they are also located in Tennessee which had some tough 
weather recently.

How long should I wait before doing anything more?  Any suggestions on 
where to go from here?

Thanks,

Jeff DeWitt