Site Relative:
a Path relative to the Site or to the Document
ex: /MyFolder/
ex: ../../MyFolder
Use the search button to find Your Upload Folder
Absolute:
an Absolute Path
ex: c:\MyFolder\
With this You can get the files outside Your web site.
Dynamic:
a dynamic path
ex: server.MapPath("../MyFolder" & Session(User))
In this case You must enter all the ASP code to define Your Path
You can make the folder name by including other form fields! For each field you use UploadFormRequest instead of Request.Form