You basically used the UOAssist vendor agent or whatever to generate the lists of armor in your containers. From there you pasted it in the armorator and it started to build a database as you enter em in.
Once you have ALL your armor in you pick the main pieces you may want to run (Things like Inquis/HoM/AoF for example). From there I think you tell it what you prefer first out of all the mods (LRC/LMC/MR/HPINC etc).
I was going to use it, but I only have like 30-40 pieces of armor laying around, so there's no point for me lol. I just have a spread sheet in excel that I use for suit building which works fine imo.
I'll see if I can find a direct like to download it at. I know where it's hosted at, but finding it on thier server is another story.