How do I fix my Linksys WRT54GL router?

I purchased a Linksys WRT54GL router, long story short – I had no idea what I was doing, tried to load “Tomato” firmware on it by doing a firmware upgrade, my router will now not communicate with anything or broadcast a signal, I cannot connect through its ip 192.168.11 nor ping the router. The power light will not go solid as well, I tried a 30 second restart but don’t think it worked.