My whatsapp says im offline, and will not let me access it
Check whether your internet connection is working. If it's okay then try to Reset the Whatsapp app like this - 


  Menu>Application Manager>Downloaded apps>Whatsapp>Clear data (Clear
  cache)


.
Now you've to reactivate your Whatsapp account which takes not more than a minute. This should work for sure. Comment if problem persists.