Can you open ports on the Plusnet TG585v7?

[#1]

My old D-link router has stated to show its age, so I retired it and got a replacement  offered by Plusnet -the TG585v7. It does almost all the things my old router did, but faster and more securely. Great, you might say, but for one thing: I cannot open any ports on any machine connected to the TG585v7 which worked fine on my D-link.
No matter what rules I set up on the Game or Application Definition screen the TG585v7 seems to ignore it, because when I check them with PFPortChecker, they are all still shut.
I've raised a ticket about it but they ordered me to to take it up with Thomson. Yeah, like you would got to Currys with a Sony Viao and ask them why the USB ports don't work, only for them to tell you to take it up with Sony. Grump over.
So, has anybody else suffered the same predicament with Plusnet's TG585v7?

[#2]

In the manual have a look at Section 6 - setting up a custom security level in the firewall it may be possible to do what you want

[#3]

You might find this post useful http://www.leenukes.co.uk/?p=71
It has some ideas on possible problems and also gives a link to the CLI manual. If all else fails then from the CLI ( via telnet ) you should be able to use the 'service' command to add applications and open ports.

[#4]

Thanks for the link - why on earth is it only the Netherlands site which has all the documentation

[#5]

Quote from: Oldjim

In the manual have a look at Section 6 - setting up a custom security level in the firewall it may be possible to do what you want

I switched the router firewall off, to no effect. then switched it back on; you can't be too careful.

[#6]

I downloaded TG585-v7_CLI_guide_R74 manual ( I can't remember from where, sorry  , but I'm sure if you google it it'll turn-up) and I have been wondering when I'll have to get my hands dirty with telnet. I've never had to use it. Thank you Plusnet  >:(.
Tried the telent command: service system ifdelete name=HTTP group=wan and got an error message telling me it could not find what I wanted to change, so I didn't use the saveall command, then quite telnet.
I'm sure I had tried the ports with Comodo, my software firewall, switched off, with no success. So had left it alone till now; I looked at the Network Monitor in the security option and found no UDP/TCP settings for the ports I wanted open on the new IP addresses of the TG585v7 network (just found the old IP addresses D-link router). Adding the UDP/TCP ports to the new IP addresses seems to have done the trick, all the ports I want  "are open and ready for firing, Captain"
Thank you all on this forum for the help