Hi Whizzboom37,
More then likely if your uploads are working, even slow or irratically then the ports are ok as well. Downloads not working are usually down to one of three things,
1. Fake files, which the patch you have is protecting you from those, so we can rule that out.
2. ISP throttling you or slowing your speeds to the point of them not connecting, its possible but we usually would see the same behavior with the uploads.
3. The settings for your Auto Enter Que being too low, I suspect this maybe one of your troubles. Open WinMX Settings > Search > On the right you will see 'Default Downloading Parameters'.. under this is your Auto Enter Que settings labled AEQ - remember previous or may say AEQ - 10 .. click this and change it to 50 - 100. Then try a search again and see if you can get into users que better.
If your still having issues then it might be a good idea to come by our help room on WinMX, and let someone test with you. You can get there by clicking Chat button, then copy and paste this into your filter bar located just above the chat room names
WinMXWorld.com Help_A06F7657BABE
Then click Join.