There have been a couple times today that I attack but I dont get any exp for it and I won.

you have
 1) lost
2) someone has attacked you
3) the npc was killed by someone else
4) you clicked the "back to world" or "back to attack page" link too early to see that there was captcha

I c thnx for the help.

That wouldn't happen.

Oh Maybe it was just me lol. I probably made a mistake My eye's were a little tired at the time of 'Happening'.

yeh, its happened to me too. clicked too fast back to world not seeing there was a captcha and needed to go back to the npc spot later on to attack it >_>