When ur attacking and the monster dies, sometimes a number pops up like Sword +2 or Archery +4, what does that do and is there anyway to check how much of it u have?

that's skill points experience added to your grand totals in your skill info.
Check out my guide for more information if you're stuck.
http://www.onrpg.com/boards/goonzu-online/2457-new-beginners-guide-luminiscence/