Every time i talk to her, her great comes up but doesn't ever go away so i can't select anything and i can't get out of the dialogue. She also does not say her greet out-load. How can i reset her?

Try clean-saving her out of your game then load the mod back in and rehire her. Never tell her to guard anywhere. It screws her up royally.

this is a know issue with her, avoid telling her to guard (tell her to chill instead) and it shouldn't happen again

Thanks

Makes you wonder if it's not this bug carried over into FO3:
http://cs.elderscrolls.com/constwiki/index.php/Fixing_the_AddTopic_Bug