I've just uploaded a new update, included in this update are the following points:
* To pay for the servers that host this project i've added pricing feature, but it is quite fair, you'll only pay a small amount when your registered user total goes over a certain level.
Please take a peek at the Pricing section on the frontpage: http://www.forumlines.com/#pricing
Suggestions & comments are welcome.
* Style set feature introduced. A style set is a collection of all the values you changed in the "Style" section of the dashboard. This way you can transfer styles from one site to another, without having to change every field on every style tab by hand.
Note: the original idea was (and still is) to add "Global style sets" which you can apply to your site, the "Global style sets" represent different theme styles, for example a theme style with a red header, a black header etc.