It's very unlikely the Network view in Windows is displaying the
router's password.
What you *should* see is the model type "Thompson TG787" followed by the
device name for the router in brackets eg "(0732AH00J)".
So unless the password is set to the same value as the device name,
you're probably not seeing the password.
Nevertheless, to change the password, refer to the End User
documentation for your router. This will be on the CD which came with
teh device; or you can get it from the Thomson website at:
http://www.thomsonbroadbandpartner.com/dsl-modems-gateways/products/p...
Then look at Section 2.2 on how to use the Web Interface to configure
your router. Basically you go tohttp://dsldevice.lanin your browser,
and configure it from there.
If you have further issues around configuring the router the best place
to get help will be from your ISP. The problem you're seeing isn't
really related to Windows, ass such; and there's nothing in Windows you
can do to change the Router's behaviour. Conversely, every one else
using that model router may have similar questions as you.
Hope this helps a bit,
Andrew