creating a local script
-where to upload jar files to. MediaFire/Mega/Your own web host
-what site do you use to check viruses to ensure script users are getting a clean file? You can't virus scan a .jar but if they think you can, google VirusTotal
-what should I put on my local script thread? What your script's about e.g what it does, where it does it, why it was made, how long it took, and cool features
updating local scripts
-how often do you update ids? Use names to define objects instead of IDs Jagex keep changing them around.
-how do people w/ previous versions of your jar update? Not lately at the moment - too many people coming over to visit for summer.
-anything else important to know with updating scripts? You need to make the update thing yourself or get one from the Snippets area.
sdn
-how would you be able to get your script on sdn? Send it to an admin and ask them to check it/Upload it
-can you put a script on sdn that is already on sdn? ie 2 different fletching scripts Yes
premium scripts
-is it only for sdns? I think it's for Scriptwriters only (check the link Led posted)
-how exactly do you make money from it? When you sell it OSBot gets some money and you get the rest.
-if you can make a premium local script how would you go about doing that? It's against the rules to sell privately but you would need a login server to verify whether they are premium or not.
Hope that helps,
Graphical