Intalling...

I know that many people have had a, 'Downloading' installation error. I have got it, and I know that it is my router it's a eTEC PT-3818 Wireless ADSL Router. Can anyone tell me how to open the ports and what ports to open? plz

OK my system specs are
Graphic Card: SiS 741 Rev 00 (32mb) (i know it's not that ,i no it sucks, because i tried on my parents comp with 128mb with no luck)
Sound Card: Realtek AC97
RAM: 480 MB
Type: AMD Athlon (tm) XP 2100+
GHz: 1.73 GHz
System: Microsoft Windows XP Home edition, Service Pack 1

At the time i saw watching it install...

Think i'm on 560 something connection on wireless router like i said.

It's not my computer i've tried it on a mega fast brand new computer like i said (Parents comp.)