For reference, how to install Slackware into IBM Thinkpad R51, follow this link.

My hardware

• ThinkPad R51, model 1829L7G
• Pentium M725 1.6GHz
• 512MB/266MHz RAM
• 60GB/4200rpm HDD
• 15″+ (1400×1050), ATI Mobility Radeon 9000, 32MB VRAM
• DVD-RW/CD-RW Matshita UJ-811
• V.90/56K modem
• IrDA
• BT
• GLAN Intel E1000
• WLAN IW2200
• 1394fw
• SoundMax
• 6cell Li-Ion battery

Software

• Slackware 10, 2 install cds, using 2.6.7 vanilla kernel