finally looks like the Horizontal theme is finished, there is only one problem that I can't solve yet: the menu (and every other onclick event) doesn't close onclick anymore.
however this isn't a big problem, I can stand it and still survive happily!

today I'm rearranging the structure of the website, grouping hidden pages of a hidden section with a visual index page: e.g. archive/tools > groups pages from the tool section. Now, the interesting fact is that some of those pages are themselves grouping other hidden sections!
all this means that it's definitely possible to have a virtual multilevel structure!

I'm going to check it better, but I'm pretty sure that I can achieve my task and have a "macro" group for images, containing photos, graphic and whatever else I like to, and each of these will contain many more single and/or visualindex pages! :-)

looks like you're using internet explorer 6, better upgrade it!