Can you perhaps clarify your situation? The words you have used are rather contradictory..."upload" you email account?
BBs function for email just like any email client would...if the email server allows the account to be accessed from multiple locations, then there should be no problem configuring it onto your BB.
Hence, please clarify your exact situation. Step by step, starting at your Homescreen, is often the best way to help us understand what you are doing. Also, the complete and exact content of any error messages is much more helpful.
Thanks and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.