Hovertips : scroll at screen edge + jquery conflict

First, I am new at web development and Drupal. I also apologize for my sometimes-bad English...
I used Hovertip module in a website, to display some information (eg copyright, development info etc) in a footer block containing hovertip links that I can click in. I am facing 2 problems:
1. Hovertip tooltips are shown at the bottom and right side of the mouse. This is a problem when a page makes the block displayed near the bottom or right edge of the screen, so it appears out of the screen and makes the page scroll. I tried to change the position according to the mouse (hovertip.js, line 228-231) but it stopped working or was shown away from
the link. Is there any way to make the tooltip detect the position of the link and if it is near the browser edge then appear in another side of the mouse?
2. In a page I use an external lightbox gallery for videos that uses its own jquery for tools and not the Drupal's jquery (from jquery plugin or update). In that page when the block with the gallery is enabled, the tooltips don't work. I found out that there is a conflict with the lightbox jquery. Is there a way to fix it? (I know a solution is not to use that gallery but the conflict problem may appear again with something else that uses jquery)

I would be glad if you give me solutions with the problems above. As I am very very new with HTML (I am not yet ready to produce something from the begining but I can understand what some code can do) or Drupal I would appreciate if your advices are comprehensive enough, especially with the code (something like a patch would be great).

Thanks

PS1: I use Drupal 6.16 and I have installed the jquery plugin and jquery update modules
PS2: Can the hovertips become transparent too?