Left Menu Item:Single Level:Urgent Help

[Why name]

Hi,

I need to create a Web site for a client.Need help in designing the
left menu item.

The site has got 3 important parts.
User : Who uses the system.
Customer : Users are associated with customer.A single user can be
associated with one or more customers.
Flavour:A customer is linked to a single flavour only.

The Customer-Flavour relation decides the pages to be displayed to the
user and hence the left menu for that customer.

Note : The left menu is at single Level only.

Any idea how to implement this design using ASP.NET and user controls.

Regards
Robin