Give this a read to understand what port forwarding is and why you need it, pretty simple really 
http://www.pcwintech.com/what-port-forwarding-nutshell
So on your computer, when the port tester works it is sending a connection attempt on that port. Well if nothing is using the port to get the connection it will fail.
What my port tester does is it opens and listens on the port for the test connection. This way you know if it is working or not.
Thats why I made the program 
Now on the 2 router setup. How did you setup the DMZ? what Ip did you put into the the first router DMZ? It should have been the WAN/Internet IP of the 2nd router 
Shane
Thanks i understand what you mentioned! Furthe ri want to say that before setting up
DMZ exactly according to the way which you mentioned in your tutorial, only it showed
succes on testing it by "BEgin" otherwise before setting that up in thi sway, it was
showing the port as offline whether we press "begin" or check doesnt matter.
While now it shows Online when we press begin test, while shows offline when we press
checkport in the small browser window, where results are shown. and whnen i am trying
to run the programme that is also no running well means port in actual is not open!
can you please on team viewer ??? it will take 5 minutes for you to point out the
issue.
i am sending you what ips i am putting in dmz and etc. yes it was same WAN/IP address!! while in 2nd router i have not disturbed or enabled DMZ it was not the requirment i hope so, only enabled DMZ in 1st router+modem to direct everything to second router
Results of ipconfig:
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 5100
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.2.100(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, August 31, 2010 10:12:46 AM
Lease Expires . . . . . . . . . . : Tuesday, August 31, 2010 12:52:06 PM
Default Gateway . . . . . . . . . : 192.168.2.3
DHCP Server . . . . . . . . . . . : 192.168.2.3
DNS server 192.168.1.1
192.168.2.3
please check attached all photos for all possible settings and advise back at soonest!thanks for your un-beatable support

and excellent programmes
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