Link Structure

[wrreisen]

Is there anything wrong with the link structure below?
Before the update there were 3 pages at the bottom to which another 12 were added to make 15.
Before the update the site was PR0 but was on the first page of Google results for 10 specific
keyphrases? Now it has disappeared from the Google rankings completely. Could the extra pages have
drained PR from the already PR0 pages that were there in the rankings causing them to be removed?
The site has existed with PR0 for at least 2 years. It does have incoming links. 2 turn up when tested in All the web.
When you put the URL into the Google field it brings up the index pages (the one previous to the update)
would the 15 pages at the bottom get classed as doorway pages and be the cause of a ban? I don't know there is one.

Link Structure
Key: ___ I ^ = links
.... = filler

……………………………………..Home page………………………………………….
......I..…………....I..…………......I.....………......I....……....I.…….....I..
*Home page *About us *Products/ *ContactUs *Enquiry *Map
...................…………………..Services:........I______Page……..Page
...............………………….........I.I..............……………. I.^....…………….
..............………………….......15 pages.......…………….. I.^....…………….
.........…………………............with 200......…………… Detailed.…………….
............……………………………words of..........………… Enquiry..…………….
..........…………………...........text ..........………………… Page.....…………….
.............…………………........content each........................……………………………..
..........…………………...........They have...........................……………………………..
.............…………………........links back..........................……………………………….
.............…………………........to between..........................……………………………..
................………………….....themselves..........................……………………………….
..............………………….......same look.and......................……………………………
................………………….....feel as the rest.....................……………………………..
...........…………………..........of the site.........................………………………………….
................………………….....with a menu bar on the side with.......
links to all the above pages the 200 words of unique content link between each each other. Each page of these 15 links to at least 2 other pages within this group of 15 within its 200 words of content. From this group of 15 4 of the pages aren't linked to by any other page other than the Products/Services page.

A couple of these 15 pages have 100 words of individual content followed by
another 100 words that is repeated on both pages a table of specification.
All 15 have outboundlinks out to other sites relevant to their content.

This is the link structure between the 15 pages
You need to stretch out the window to get it all.

To...1...2...3...4...5...6...7...8...9...10...11...12...13...14...15
From..............................................................………………..
1.................................................................……………………
2.................................................................……………………
3.................................................................……………………
4……1.…..….1....................................................…………………
5…..1..........................................................…………………..1
6…..1............…...1............................................…………………
7.................................................................…………………..
8.....................…….…1.....……..1............................………………
9..................………....1....................................……………....1
10.......1.................................………...1..................……………
11...............……...1...1........................................……………….
12................................................………………............1...……
13........…...1….....1............................................………………..
14.…1..................…..1.......................................………………..
15.....…1.….....1.................................................………………….