Help with File/Printer Sharing

I previously used a Dlink DI-714+ with no problem sharing files/printer. I recently changed to a Dlink DI-624 router. I have my two desktop pc's hardwired into the router and my laptop wirelessly connectly to the router with a DWL-G650. I have no problem connecting to the internet but I cannot browse the LAN and I cannot share files/printer between the computers. The computers are in the same workgroup and file/printer sharing is turned-on. I have checked the XP services Computer Browser and that service is on. I am out of troubleshooting options...help!!!!!!

 

Log to this page it has a lot of links to instructions to Windows Network Settings, and Sharing.

Link to: Windows Network - Installing & Sharing.

 

Dude, you are the heat!!!!! I read the first few paragraphs and I thought, I know it is Zone Alarm stopping things. I went in, created a trusted zone and holy crapola, it works. Thanks for your help!!!!