Reset Linksys wrt54g and new Problems

Reset the wrt54g, holding the reset button. Why...is another long story was basically trying to get a PSP to connect wirelessly....tried to set it up entered wep etc etc but PSP would not connect to the router.

Finally P#$$#d off did the reset.

Now I cant connect to the net Using the Ethernet cable !!!! So can't Enable WEP. And most irritating is of course having to dial up using PPPoE(I think thats what it's called). Earlier it would connect as soon as the modem booted???? Thank god I had saved the dialer along with user name and password.

I can ONLY connect to the net on my lappy wirelessly after using the dialer!!!!! Is'nt this strange as I would have thought people normally had Problems connecting wirelessly and not when wired up!!!

What should be done to fix this stink :cry TIA