can anybody tell me why my site all of a sudden went into supplemental

[clean]

my sites had a decent page ranking, would come up in google when
searching for different keywords and then all of a sudden a couple of
weeks ago all my pages except for my home page were put into this supplemental results crap area, now when searching none of our pages
come up except for our homepage.

the only change i made a few weeks ago was that within our website we had home navigation links and logo home links, link back to our
homepage with the following <a href="/">home</a> relative path, we changed all those links to <a
href=http://www.example.com>home</a> absolute path, which changed
over a hundred pages or so

now i have changed everything back to the way it was and we are still in this supplemental results area first question i have is could this have caused our site to move into supplemental results and how do we get ourselves out of this supplemental results area

can anybody see anything else that might be putting us into the supplemental area
our website is <snip>
thanks

[edited by: engine at 6:11 pm (utc) on June 5, 2006]
[edit reason] See TOS [webmasterworld.com] [/edit]