Fix video and music uploads for dolphin

I need someone to get video and music uploads on my site working. I get the infamous "uploading file error" when trying to upload video, and a similar error when trying to upload music. After struggling for answers for a solid week I am throwing in the towel.

There are many people who "think" that they can fix this problem but there is not one single solution for everyone/every server, so I am not willing to pay for the job until I test it myself to confirm that everything works. I'm an honest person, if you don't trust me to pay you, don't bid. But you can trust me! :)