button at the bottom of the screen in MediaTransfer and then click the 
button.90% of all the support requests we get are issues with Windows, Windows Firewall settings or Windows computer names.
If your PC is not cooperating, remember that MediaTransfer is free, and is not the culprit here... Getting FTP and Windows Firewall to cooperate is usually the issue: and we are happy to help.
Version 2.0 will make computer name issues a thing of the past, but you still need to work with your firewall..
If you are frustrated feel free to give up trying to make Microsoft like your iPhone... or check out how easy the Mac setup is... and be convinced to buy a Mac.