Tablesorter @ sort image

Tablesorter @ sort image

First of all, sorry for asking this... probably has already been answered, but I can't find a solution.
I'm using the tablesorter plugin with this simple table:
table @ pastebin

I need to sort the second column, using the alt or title parameter. I have to write my own parser? I don't have any knowledge of javascript, so I really don't know how to do it.

I'm using jQuery 1.5 and the last tablesorter.
Is there a better way to sort tables or another plugin?

Thanks in advance
PS: Sry for my english.