Error Message When Upgrading to 3.7.4

[thesnarkpit]

I just upgraded from 3.6.8 => 3.7.4 and everything looked great...any problems that I had before were fixed and so I attempted to make a post to let my members know that the forum was upgraded. When I did that, I noticed that none of my smilies were clickable and when I hit the submit button, I got this error:
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The following errors occurred with your submission:

1. The message you have entered is too short. Please lengthen your message to at least 1 characters.
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I changed the template to see if it was just the one I was using and all my templates do the exact same thing. Any suggestions would be greatly appreciated! Thanks

--------------- Added [DATE]1226852166[/DATE] at [TIME]1226852166[/TIME] ---------------

One of my co-admins and some of the members are able to post fine while myself and my other co-admin gets the error message I posted above. No one can use smilies at all...they are not clickable. I'm really freaking out here that I've done some major damage to the forum and hope that someone can help me get this straightened out.

Is it possible that I should've upgraded to 3.6.12 instead of 3.7.4?