Illustrator Default PDF, if open in Acro Pro, drag and drop other .ai files, will they also....

Question

Hi! I'm trying to archive (for myself and others for easy access) about 50 fairly complex .ai files in a single Illustrator Default PDF and maintain editability and preserve layer and grouping integrity for every separate file, and, i'm probably going to have to do this hundreds of times (at least!) in the future. Once i save the initial first pdf file through Illustrator (wish didn't even have to do this, but seems no way to do in Bridge), then open the resulting pdf w Acrobat Pro, can i then just select an entire folder's worth of ai files in Bridge, drag and drop them into the pages panel and still have the dragged and dropped files also preserve all their AI info and layer/ group integrity? An if not, thinking if not based on 20 similar experiments, what's a fast way to do this. Doing this manually each time: opening each file in AI then saving as AI pdf, then combining and arranging them all after the fact, would be, well, fairly effed in terms of time, carpal tunnel, arthritis etc. Experimented w Bridge PDF Output batching (terrible rasterized lo-res results, but great for its intended purpose) and just dragging and dropping into Acrobat (lose complicated layer names and info, all flattened to single layer). Any help most appreciated, and as i do not have regular access to das interwebs  (i live on a boat) would appreciate and heed gentle admonishment if i've misposted or broached any community etiquette here. I've researched this as well as i can but can't find anything efficient/ elegant not involving InDesign, and even then the details are skimpy. Thank You! Getting mentally exhausted and not a little loopy. Keep in mind had to teach myself both Illustrator, Acrobat etc with access to the very limited offline help menus (the boat), so a complex answer involving learning InDesign would be learning curve can't even imagine with everything else struggling to do. But if you're willing to babystep diagram it out for me or can find me a link that does i will not only be eternally grateful but will do my durndest to master it and pass it on....Thanks Again! lil mc szpf
PS If it helps I'm running the diligent dogged dusty beloved workhorse CS4 Design Premium on 27" monitor 2010 Mac (OS X 10.6.8), and took advantage of rare housesitting net access to install all most recent updates of everything, i'm barely competent w AI, PS, BR and been tackling Acrobat for past couple of months now....

Answer 1

im glad that somebody is atleast trying. perhaps i need to be more clear.
i will step by step describe the issue in detail.
1) i open an email that contains an attachment .dxf or .pdf
2) i click on the attachment shown in the email and aprompt comes up asking if i want to open or save the attachment.
3) i select save. (by default it saves to a downloads folder. but i have also chosen to use other folders (when i did that it wouldnt save them)
4) i highlight the downloads arrow on the right top side of my browser and click it
5) it pulls down a list of the files that i USED to be able to click and drag onto my destop, or anyplace i chose
6) used to be when i clicked and held the left mouse button down on top of a file of my choosing it would highlight and as i began to drag, a ghost image would appear of the file i was dragging. showing a (/) symbol next to it showing i couldnt drop the file within the browser and a + simbol showing that i could drop the file when the file was hovering over a place where i could drop the file such as my desktop or other folder. now, when i click and hold on the file.... I DONT get anything. when i drag. nothing follows. while i am "dragging" in the area that is my browser, i get the pointy finger icon. as soon as i enter an area where i could have dropped the file as before, i get my standard cursor arrow.
its really as if the drag and drop feature just dosent work IN FIREFOX.
i can drag and drop files all day long everyplace else.