I think port 80 is the default port, so it's just a 404 Not Found.
And it looks like www.wpquery.co/ is just a shortcut to the local host server. You running this on WAMP or something like that?
So there are various things to do depending upon what's happening with the pages. If the pages still work, just get rid of references to that missing script. If other scripts need that script and so are not functioning, upload a copy of it to that location, or change the reference to it to:
Or to some other location where it can be found.
But there's nothing in the code you put up in pastebin that calls for that script directly, so that reference must be somewhere else, perhaps on another PHP page/include or perhaps it's even created by another script. To have a better chance of knowing that, we would have to see the live page where this error is occurring.
The easiest thing would just be to put a copy of jquery 1.6.3 there in the root of the local host server and name it jquery-1.6.3.min.js and hope for the best.
The browser cache may need to be cleared and/or the page refreshed to see changes.
If you want more help, please include a link to the page on your site that contains the problematic code so we can check it out.
Oh, and if you're not running this on a localhost, perhaps this video: