Simple mods to a php/Javascript photo gallery script

I have several mods to make to a php and Javascript gallery script. The work shouldn't take more than 3 hours to complete and requires a knowledge of the above languages and the FaceBook method for "Sharing" an image and text comments for the image. Tasks are as follows: 1. Task 1 is to reposition 2 divs with minor additional code changes. 2. Add FaceBook mods as described above. 3. Add mods to establish user and admin modes and button to switch between the two by reloading the page. The only diff in the modes is the file search arguement and to hide or show the FB share button. 4. Force active image to scale inside of image box. We will schedule a time to begin work, then I will give you the link to the free gallery script and be available to approve progress as you go. I will want a zipped file of the completed work for approval upon completion. This is minor coding for the right coder. This work should not take the right coder over 3 hours. Plz bid accordingly.