In answer to your questions:
1. The image used for the actual user profile page is linked to what they have set up on gravatar.com
2. If you're looking for a layout different to that of the default, you would either need to customize it yourself, or you can also find ready made child themes in the
AppThemes marketplace.
3. Featured ads are paid for during the ad posting process unless you were to manually add them as featured in the
wp-admin.
4. If this is about re-styling the default theme layout, then the answer to #2 applies.
5. This is not a default widget, so would require customization on your part.
6. There is no offer function built into the theme so depending on how you want to display it, could be a standard text/html widget or you could customize.
7. As above.
Our themes are not encrypted, so you are free to modify them as you wish. AppThemes doesn't offer customization services, however we do have a
certified partners page where you can find developers for hire. Thanks.