r24 zoom with cubs

Please excuse me I am Very new at this.I have had a zoom r24 and it came with cubasele6. I cannot get the settings right, when I use them zoom as a stand alone it is fine when i try the software it will record I can import songs it plays back fine when I play back what I have recorded it is very distorted. I am using a Mini mac. Also I cannot find where I can use my keyboard.