Partitioning help

Dear List, I have a system that was a dual boot system with SuSE 7.2 and NT. It was setup with NT on the entire first scsi drive (4G) and SuSE on the second scsi drive (9G). Lilo is set to boot SuSE when it's boot floppy is in the floppy drive; and it boots NT if no floppy is there. Now that I have upgraded to SuSE 8.0 and I like it so much I am going to dump NT. I have looked at the YAST2 partitioning app and it shows only M$ fat and ntfs partitiones on /dev/sda and only Linux on /dev/sdb. I am not able to figure out how to use that space on /dev/sda after I re-partition it as linux, and I'm not sure how to readjust LILO to boot linux from hard drive. Any suggestions? Thanks ............. peterb vc