Photogallery/portfolio

Hey guys, I have a whole site done in flash and all I need now is to make the portfolio. This part scares me though. I have no clue where to begin or even finish. I thought I could make a link simply loadMovie and each movie have one section of the portfolio but that would be such a pain to update and I would have like 50SWF files.

What I would like to do is generate a menu from an external file. AND then, onClick of the loaded menu link would load a jpg into a movieclip and maybe some information txt into a variable so it could output it.

HOW TO DO THIS?
Thank VERY very much.