... hcimonit in your x:\os2\boot ...
I don't have such a program. I don't think it comes with the Convenience Pack.
You're right. It never shipped with any level of the Convenience Packages. That was the reason I gave you the resulting entries for your config.sys. Later USB driver packages from SWC/PPA included the USB 2.0 support.
If you have only CP2 the included USB drivers in \OS2\BOOT should be at revision 10.058. You can check it with the command BLDLEVEL. The OS/2 Device Driver FixPak (XR_D003) includes files at 10.070 revision level - but also no USB 2.0 support.
[C:\os2\boot]hcimonit
You have 4 PCI USB UHCI host controller(s)
You have 1 PCI USB EHCI host controller(s)
With a T41 it should be usually 3 UHCI and 1 EHCI. The reaseon for 3 entries of the same driver in your CONFIG.SYS.
Using the USB drivers which are installed from the CD doesn't seem to give me access to any USB stick I've tried.. maybe it's a hardware problem, but having said that, I can boot from USB, so it must be OK.
So the system installation was done from an external USB CD-ROM drive?
Simply use LVM on the USB storage to create a partion.
I attached 2 files built from ddk sources that should work with a CP2 without any fixes and additional device drivers.