That one looks comprehensive. For those reading this post wanting, what I believe is the most commonly used code withn this forum, check out:
Your values will be posted in a comer delimited string. You simply need to split the string on the comer, put the values into an array, then do what you wish to do with them in a loop. IMO Your question was a bit vague. It would take a while for someone to put that code in place to see, what I assume is a very small problem.
Does the script you talk about have the ability to upload multiple files 'in one action'? (just like a mail client does)
Wind is your friend