_level0, _level1, _level2? :Very Confused!

ok here’s my really, really quick question:

I’m setting up my whole site in Flash. My main movie which is used to navigate to the other pages is located at _level0 or _root. I have one empty movie clip located on the stage into which my pages will be loaded. Empty movie clip is located at _level1. Now here’s my issue: one of my “pages” is my portfolio. I made my portfolio “page” into a .swf (obviously) into which smaller .swf’s representing my work will be loaded into. Now when i test my folio.swf and click on the buttons all of the “pages” of my folio load fine. But when i test my whole movie and load my folio.swf into the main movie and I press one of the buttons it keeps reloading the first movie that I automatically loaded in.

Alright let me try to explain this a bit better:

indexFlash(main.swf)
I
I
I------press portfolio button(loads folio.swf)
I
I
I—press a button on folio.swf
(loads 1 of 6 “pages”)

The problem is that I have my first “page” automatically loaded into folio.swf thru a frame actionscript. When I test my other buttons on folio.swf AFTER I’ve had it(folio.swf) loaded into my main movie(indexFlash), my first page from folio keeps getting reloaded no matter what button I press. I went thru and checked the code for each of my buttons on folio.swf and they all reference the particular movies that they’re supposed to load. So I’m thinking that I have a problem with my paths in actionscript. If I have an empty MC on indexFlash.swf that I load folio.swf and folio.swf also has an empty movie clip in it to load the “pages” of my portfolio(folio.swf), do i script my path as

_root.contentMC.main1.loadMovie() 

where contentMC is the empty movieclip on indexFlash and main1 is the empty movieclip on folio or do i script it using _level# or di I script it using _parent or this? And How many levels would I have to go up to include folio.swf which contains main1(empty movieclip)? I’m really confused. Would someone break it down for me, please?
:*(