Upload and retrieve images from the web server

Hi,

I am working on asp.net web application (VB) where the user uploads his images in the web server and then he can retrieve those images by using gridview with paging.
Everytime as the user uploads new images, the code should create new folder.

For e.g:

UserName    FolderName           Images
A                   A (new)                1/2/3/4/5
B                   B (new)                1/2/3/4/5
C                   C (new)                1/ ...