I had a feeling it was the resizer, but still... why a "runtime error"? It's only javascript and HTML... shouldn't it be a "script error"?
I count 26 or 27 popups... the thread he's viewing only has 21 replies, and probably fewer avatars...
It might help to know if all the errors are on the same line... also what happens when you click debug? Maybe that program will debug it for me...
That browser looks like IE6, and I've tested the script in it (as well as Opera 7 and NS 6)... worked fine.
/ 
