Custom Postbit Question

[kh99]

I'm not sure what you mean - do you want users to be able to type in a subject in the postbit? What you can do is create a custom profile fields that allow a user to select a sport, for instance, then use the values of those field in the postbit template to decide what image to display (or create a plugin that decides and sets a varibale that's used in the postbit template).