Small Business Server 4.5 & SCUZZI HDD

My SCUZZI Atlas V UltraSCSI 68Pin Wide 9.18GB HDD that was my primary boot for my SB Server 4.5 Install loops continually between the Selection of Starting SB4.5 and will not load the OS. First Question is : How do I access this drive to get my dataoff of it? Second Question How can I restore or fix the SB 4.5 Install to get it working again?