Your asking about getting traffic from IBO tells me that you and IBO will go together well.
One of the ways to get traffic at IBO and from IBO to your site or your affiliate's site is to make posts.
Making posts on the wall does not seem to work so well, there are too many posts. Creating and publishing press releases works very well. The key (IMO) is quality content, applicable images, and some humor. I have been absent from IBO much of the summer and have only made 6 recent posts. My traffic at present is 545 IBO visitors with a couple of hours to go. I experience (siphon) about 6% to 10% of that IBO traffic to my sites. It depends on how good my post is...and sometimes they flop-grin.
Another traffic tip is to visit other members PR's and to comment...make a real comment with sincerity. Your comments will be read and will produce more traffic in return as well as friends and associates.
Allow me to mention that IBO is a 'social' platform, so be 'social'. You will get that traffic and have fun while generating it at IBO. Have fun my friend.