PHP work on Video Site

Hello, I have some work to be done on my site + script. The script used is videowatchpro. The script is made for php4 and apache, however we are running on php5 and nginx. The main script functionality seems to be working well however some things need adjusting. The work need is listed below with the type and estimated duration: 1-Troubleshooting, 1 hour: Convert it to PHP5. Originally, the script was written for PHP4 and some code polishing has been done to remove php5 notices & warnings, but there are still some places where it throws notices, so each page should be checked to have no warnings or notices. 2- Troubleshooting, 4 hours: File Upload Progress in members area is not working. This is uber upload and should be plug and play. Not sure what the problem is. 3- Troubleshooting, 2 hours: Video file conversion to flv. Uploaded files should be converted to flv. This function is not working. 4- Enhancement, 3 hours: Watermark Options should be added in the admin panel. 5- New Functionality, 4 hours: Add a "link" field under the video on the video playing page to store uploaders website for the video. Also add it when uploading video. 6- New Functionality, 4 hours: Adding remote upload functionality. We might acquire this module and integrating it will only be needed. ATTN: This is running on NGINX not apache. Please take that into consideration. Thank you