Although this sample is called "complex" there's nothing complex about implementing the menus when using such intrinsic frames design. The process is always the same.

This frameset is made off 7 different frames, setup in such a way that 4 frames are used to create a margin (the dark blue area) and the rest are used to create the frameset where the left section (light blue), the banner (yellow) and the main content (dark yellow) are displayed.

Thanks to DHTML Menu Builder's powerful frames support, you can event include your frameset inside a frame that belongs to some other frameset and the menus will continue to work.

Defining links when working with frames is very easy.
The Target Frame dialog in DHTML Menu Builder will display the standard frames that can be used with links plus the frames that have been discovered in the Frameset Document.

Just select the appropriate frame and your link will be opened in the specified frame.
Even if you're mixing frames with iframes, DHTML Menu Builder's target frame dialog will be able to discover the correct frames paths.

Also notice that this frame has been intentionally made very long so you can scroll it down (and up). You will notice that the menus continue to appear perfectly aligned with their toolbar items regardless of the browser's scrollbar position.