I tried exactly the same on Dell Latitude CPt and failed, used VL-5.9 Final.iso. round 300 MB or so on the CD.
Too many tries.., but it worked just once and never again!
Try with "5.9 LIVE final" Can be worth.
But, VL-5.8 Std LIVE works like a rocket for installation, what later is an other story, it works with a PIII, barely for me with a slow PII.