I was able to install fixpak 26 (from the Hobbes cd-rom). I created the diskettes using the loaddsk.exe and makedsk.cmd (copied to the hard drive of my desktop and altering the latter program) from the WarpUp fixpak 15 cdrom. It installed fine (till the very last but it seemed to stall). I had created bootable diskettes using loaddsk.exe and an altered makedsk.cmd with/from the newkicker.zip file also from the Hobbes cd-rom.
The cd-rom is a Mitsumi. I found it online. It is a newer cd-rom drive. I tried it after the fixpak was installed and got a 'data not found' when I tried looking at files on a cd-rom drive. I will try another cd drive (I have an IBM cdrw drive).
OS/2 Warp-ed to the very end.