"Can you manually copy files to make a bootdisk?"
Yes. Section 8 of this HOWTO tells you how to make a lilo bootdisk:
http://tldp.org/HOWTO/LILO.html
You can easily change the instructions to use /dev/sda instead of /dev/fd0.
"If you end up with no lilo on the MBR after you reinstall windows is my slack finished?"
No you can boot either with a boot floppy or with the Slackware rescue CD.
___________________________________
Be prepared. Create a LifeBoat CD.
http://users.rcn.com/srstites/LifeBo...home.page.html
Steve Stites