JQuery fix bugs

Fix jquery bugs from a page

I have a copy of a website and some jquery didnt work properly.
I want someone check my copy and fix all the bugs. I want an exact copy of the website.

1. Fix jquery slider - popups
2. Replace the old music player with a new one mp3 player (auto play-on-off button)
3. Fix a jquery page, where visitors can upload their photos securily (jquery/php)

Nothing less of the above!
If something of the above goes wrong, the developer must fix it or the deal canceled.
Thank You!