For themes, the best thing to do is contact ModMyi or MacCiti to host the theme for you. You can find out more on their websites - they have info for hosting.
For tweaks and other software packages, the best thing to do is to contact BigBoss.
They're all default repositories, so when you get your package into one of them, nearly everyone who uses Cydia will be able to access your package.
11-02-2011 06:46 AM