Brush up a finished website(repost)

I have a pregnancy and baby website that is finished. There are some little adjustments need to be made: 1. It has 3 different greetings shown to each user: fetus age in weeks for pregnant women, baby age in months for new parent, and normal greeting for the rest of the users. All of this is done, but there are mistakes in calculation, I want it to be exact. 2. There is very simple blog, I want the editor to be user friendly, so that user will not have problems uploading image and inserting into her writings. 3. Admin panel: edit, add, delete users 4. Admin panel: see site statistics (number of visits till now, number of members, number of new signups today, most visited page, top referrer, top visitors etc) 5. Admin panel: add new static page (determine background color, layout, fonts, images, url etc) 6. Front end: tell-a-friend page (import addresses from yahoo, msn, gmail etc) 7. Make gallery uploads error free, now it uploads some images by users and cannot display. 8. Change some graphics into smaller size and combine some graphics and make the site load faster.