How would i insert a weedless tube jig head? wouldnt the weedgaurd prevent that??

I put the weedguard in tube first and make a hole with it at the top of the tube where the jighead eye will eventually be.  I then continue rotating and pushing the jighead (the weedguard will continually come all the way back out of the bait) until it is all the way up into the tube and the eye is protruding out of the bait.  You got to smash your tubes a little to get it  done but it doesn't hurt them.  

Its kind of difficult to explain but that is how I do it.

If that is no help I will try to post a small picture tutorial later when I get off of work.

I kind of understand that Big Tom but a pic would be great if you get time

Here is how I do it. I took an old set of TV rabbit ears and cut off a piece. I cut the head off a nail and put it in the tube.

Alright, here is something I found using google.  Its exactly how I do mine except that I don't use a metal sleeve at all.  This is pretty much what I was describing though.  I just let the weedguard do the job of the metal sleeve.

http://tackle.redshad.com/tips/PekTube1.php

If you buy a pack of Oldham's weedless tube heads, which is what I use, it has rigging instructions right on the package.  

Good lookin' out Jig Man