using the potential (Project organisation)
[*] how to put a thread at the top and leave it there forever. Or anytime you like.
As an admin you can make a thread a sticky.
[*] can one be able to remove the powered by my little forum at the bottom page? Its kind of too bold there.
Why removing the copyright note? It's the price for using this software. And about "too bold". Grey font on light grey background with a size lower than 12 or 13 pixel height is "too bold"? There seems to be something wrong with your eyes.
Anyway, you can change the size and colour via CSS rules.
[*] am i allowed to use customize themes on my little forum?
Change the HTML templates and the CSS ruleset yourself.
Trenne niemals Müll, denn er hat nur eine Silbe!