Alt Text &Tooltip blocking

 

Hi,

 

I M using the guest mod (by: jeffdaro -at the bottom of the page) that enables guests to view forum topics but prevent them from viewing the topic itself. (I've put it on 'forum_posts.asp')

That "force" guests to register the forum and become a members if they wish to see them complete post.

However I've noticed that the alt-text or tooltip text can be read. 
If the message is short or have a link, guests actually can read the post inside.
how can I disabe it from guests only. ?

Thanks