internal link structure critique needed

I've been reading all over the web about internal link structure. I am
still a bit fuzzy on how to proceede.

Could someone please give this layout a look over and let me know if I
am on the right track?

The layout below has all of the items with a single dash '-' on the
home page.

Then each of the sub pages are link'd to each 'parent page'

ie... the Trilogy page would have links to product1, product2, product3
and a link to the home page and a site map.

Is this layout correct?

-products
- -Trilogy
- - -product 1
- - -product 2
- - -product 3

- - Electronic Systems
- - -product 1
- - -product 2
- - -product 3


-Solutions
- - -EMS
- - -Education Solutions
- - -Industry Solutions
- - -Command & Control Solutions

-contact us

-customer support

-IOIP
- - Build a system
-VOIP
- - Build a system

Many Thanks all!