Ok then it IS a permissions issue if it worked fine on your local box and then it failed to work on your web host. Call your host and have them readjust the permissions on the folder and, as rich said, the IUSR_[machinename] user should have the rights.
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I will only tell you how to do it, not do it for you.
Unless, of course, you want to hire me to do work for you.
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Read this if you want to know how to get a correct reply for your question:
http://www.catb.org/~esr/faqs/smart-questions.html
^^Took that from planoie's profile^^
^^Modified text taken from gbianchi profile^^
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