if you are looking at making some sort of Sins related program, you'd be very well off talking to harpo99999, he's made all sorts of programs, from Mod Auto-Updaters and User-Friendly Text Editors, to Map Updaters and Language Translators for Mods etc.
If its help you need, he'll be the best guy for the job.
Now, let me understand, this program is to enable the user to browse a database of Sins (Custom?) Maps with the ability to preview the layout of the map (along with standard details like designer, Map backstory, best player numbers etc etc), and, ultimately, facilitate downloading custom maps by creating a one-stop shop for all maps to be uploaded to, previewed, and downloaded from, rather than running around to multitudes of websites.
sounds like a GREAT idea, and i really think someone should 'sell' the idea to IC so they can provide support for it, provided the program works as advertised and becomes a moderate success on its own, that is.
anyway, kudos to you