Logic Pro 9 Audio track problem??

Hi there, new to this game and wondered if anyone could help me with an audio track issue? i have an m-audio audio buddy pre amp going through a behringer uca202 control into my mac, the problem is when i play a chord or note on the guitar it registers it in the audio in and stereo out columns but i cant hear it no matter how loud i turn the speakers up! any help would be greatly appreciated. thanks.