Oh where did you get the bootdisk?? it's a known issue with xp where recovery console doesn't recognize your password. My xp did the same thing..there is an article online about how to fix it..i forget the link...let me go find it hold on
oh i am not going to get flames for posting a link from M$ am i??
here ya go..hope this helps
Also try to get SP1 for xp if you can since this is what fixed my recovery console error and many other things...but if all else fails, u can always just reinstall xp..it will probably overwrite few of ur personalized settings but there shouldn't be any data loss