LBO Models

Fellas, 

I (Undergrad Junior) am in the process of getting a summer internship at a PE firm. The guy I have a connection with told me he would recommend me to the partner in charge of hiring. However, he said that I should be very well-versed in LBO modeling. I had a modeling class last semester but we didn't cover LBOs and when I asked my professors to help me, they told me that they had no clue how to do them, it's taught in grad school, "Just go figure it out yourself". I don't know when my interview is gonna be set, but I feel like this company moves things along pretty quickly and I might only have a few days to prepare for their "LBO Test". 

Does anyone have suggestions on how I can learn LBOs as fast (and as well) as possible?

Thanks.