Very rich use of colour and texture. The sensibilities of the site come through loud and clear. I do agree with the content rearranging idea to more clearly convery - up front - what the site is for. It is a commercially oriented site - make sure people immediately know stuff is for sale.
There are some very constructive criticisms from previous posters that I won't repeat.
Now - to one of your earlier questions. Sheesh - Navigator sure is wonky with this page. I open up one time and it shrinks the main table to about 50% centered, other times it is 98% or so. If you look at in composer it is fine.
I think I have figured out your table nesting (good use of comment labelling of the structure - a lot of people could learn from your layout and proper documentation of the code) Navigator likes collapsing tables around content. If you use a <table width="98%"> it SHOULD do what its told - but obviously isn't doing it all the time. Try putting a <col width="100%"> after the table width tag to get Navigator the express the width called for. You may force the width that you want by using a transparent spacer gif in your outer table to hold the minimum width.
There are a number of places you could make more effective use of CSS. For example. For your left nav you have little flower images. You can use images for list dots and put your links in a list that automatically adds the graphic.
eg ul{list-style-image : images/teenypansytransparent.gif; direction : rtl;} would create a list with your graphic displayed on the right side
Simplifies coding. Also, I'd specify a special A.nav {text-decoration:none} or UL A {text-decoration:none} (contextual selector would not underline links if in an unordered list) for your nav links - that would clean up the nav a bit more and emphasize your flowers more.