Fading between two pages & controlling one MC from another.

Question

Let me see if I can explain this properly. I usually use a motion tween and the alpha channel to fade movie clips in or out. What I am currently trying to do is fade one page out and another in, but it could be one of several MCs. I basically have four "pages" for a website including services, portfolio, about, and contact. I have icons on my navigation bar (which is going to be imported into my XHTML seperately so it can float them according to the users window size). The icons need to navigate between the pages and the pages need to fade in and out (eg. fade in the Services MC when the user clicks on the services icon, and fade out of it and into the Portfolio MC when the user clicks on the portfolio icon). Please keep in mind that the icons and pages are in completely different .fla/.swf files because I couldn't figure out how to float them in Flash after several hours of looking around online, but know I can easily do it using div tags + CSS in XHTML.
If someone could quickly explain how to "gotoandplay" a label in a different .swf file (communicate between the .swf NavBar and my main .swf) as well as fade out of the current MC (whichever page the user is currently on) before fading into new page (according to the icon the user clicks on), I'm sure I could 'fill in the blanks' from the rest of the AS3 and Flash I already know. The page also needs to fade out of whatever page it's currently on when the user clicks on the hide button (located on the page in the main .swf file). There is also several subpages on each page (which shouldn't be a big deal if I can figure the rest of this out).
I'm going to be using this same concept for nearly all of the websites I design & develop in the future and really need to know how to do this for the current site I'm working on. I would greatly appreciate any suggestions on how to accomplish these two things.
P.S. Please keep in mind I'm not an advanced user in AS3, but am very computer savy, and have done my share of programming in the past. I looked around for hours online to try and complete this without using the forum, but have come up with links to dead tutorials and short answers left and right. I'm hoping I won't come across the same here.
From what I've read so far I believe I can use tweening in ActionScript instead of a motion tween on the timeline to fade in and out of clips and believe that's the method to use to accomplish what I'm trying to do. Correct me if I'm wrong though.

Answer 1

I'm not looking for a "tutorial created especially for me".... Just perhaps someone that can copy and paste some code from a similar project that they have done so I understand how to do it.
You could have simply put here's a tutorial for how to use TweenLite to crossfade between four pages, and here's one that will let you pass information between two .swf files. If you recently watched the tutorials then it wouldn't take long to find them (maybe you have them bookmarked) and post a couple links.
Anyways, I just found an excellent tutorial on how to crossfade using TweenLite (found here) and an article that explains how to pass information from one .swf to another (here). It took some searching and knowing exactly what I was looking for to find them, but that's a much better answer for someone looking to do those two things than I've found here (or elsewhere for that matter).