How can you post a full HA. I have seen others do this but I just have not been able to figure this out.

I usually save the image to my computer, then upload it to a free image hosting site (something like photobucket). Then all you need to do is [*img]urlgoeshere[/img] without the *.

Alternatively to the above answer, you can also just type in;

[avatar=username of the avatar you want to post here]

to show yours/someone elses current avatar.

thanks!