Do not advertise your clan on my topic please, if you're trying to...
I think he was actually linking you to a topic with a good page setup so you can get ideas on how to organize your clans original post.
Anyways, just try and experiment with paint.net.
You should go to their website and view the tutorials if you're stuck, otherwise most of it should come to you with time, and the basic stuff you can work out if you've ever used MSPaint.
It's also a good idea to see if you can fit the theme of your clan into your logo. Don't make it over the top, but still have it stand out.
Good luck with the clan.