Guadalupe
The symptoms sound like the console speed got changed whle doing password recovery (probably due to mistyping the config register value - or forgetting to put 0x in front of the config register value). I would suggest that you try changing the speed of your terminal emulator (Hyperterm or whatever you use). Try speeds of 9600, 4800, 2400, and 1200. Hopefully one of these will allow you to get back into the router. With Hyperterm (and possibly some other emulators) it is helpful to stop and re-start the terminal emulator each time that you change speeds.
HTH
Rick
HTH
Rick