-D-Link DSL-502T ADSL2+ Router
-TP-Link TL-SF1008D 8-Port Switch
I was given a wireless router for free, a D-Link DI-634 which seems (on the surface at least) to be a good piece of gear. I'll state now that if I can use what I already have that would be a massive plus, I really don't
want to spend much on this if possible.
First things first, is it possible to use what I already have to basically just add a wireless access point into what they already have?
I've hooked it up and tried a few different settings but I only have a rudimentary understanding of all things internet and networking related. I know how to get into the router setup pages and change stuff, but at some point past the setup wizard in there it all turns into hieroglyphics and big words for me

If it is possible, I'll need some help with the setup of the router. In case it helps, they are on Ihug ADSL2+ and I can view all the settings for that (PPPoA etc) through the DSL-502T setup page.
I can provide any more specific information as necessary, and would really appreciate any help you beautiful geeks can give me on this!