I'm not sure if you're aware of this, but the usb.img disk image when attached it to USB mass storage in QEMU, the system triple faults while booting, and so it must be used as a hard disk; so I installed it from the floppy disks.
I wasn't aware of the usb.img tripple crash under QEMU, I've always used the image as a hard disk when running QEMU. What's you QEMU version and command line when running the usb.img disk image as a USB mass storage?
When I unpacked .TAR file in 7-zip on Windows, and tried to install it in VmWare workstation, installation boot correctly, it prompted to insert second diskette and when I putted disk2.img inside and pressed OK, it suddenly exited graphics mode and printed "panic: intr_aena: interrupts disabled" on AMD64 and "sysinstall: bmp_load: /lib/bg/bg640x480.pnm: No such file or directory" on I386 . I'm using floppy drives with provided 64 MB of RAM. Where did I gone wrong?
What's the exact VmWare Workstation version?