I'll do a full review on this since:
1. I used to have a non-paid job on a forum reviewing other forums
2. I may be buying another/renewing a domain, and this post could really help me out!
What I liked
The portal is very nice! There is a lot of color in it, which makes it look great. Many people tend to overdo portals by adding and adding, but yours doesn't have too much or too little. Your banner is very well made! It has a great logo, and I love the flags at the top. The FavIcon is another great addition, and goes well with your theme.
What I didn't like
The forum looks great with the icons off to the side, but why did you stop and not add some for the last three forums? I think it would make the forum look more complete if you were to add three more.
I didn't see a "Who's Online" or Statistics Center, did you just disable these for guests?
The theme! I forgot the name of the theme you use (I use SMF), but if I remember correct it is default. Change the colors, and it will look a lot less "Default". Or if you don't know how to/can't change the colors, change the new posts/old posts icons to maybe the African continent, in a different color for new posts? It will further "Africanize" your forum.
The term "gayism" in Debates forum. The correct term is homosexuality
What I think could be improved
Rather then africahangout for the title of your index.php page, how about African Hangout? It would look much better capitalized.
As far as I can see, there isn't just a general chat board. I think this is the biggest thing you are missing, as usually this is where the most activity is in a forum.
I wish you good luck, as it looks like you spent a lot of time on your forum!