I was able to successfully install Myth: TFL in a Win98 bottle on the following machine:
Soyo SY-7ISA+ Intel i815 Motherboard
Intel Pentium III 866 MHz Processor
512 MB SDRAM
PNY Verto GeForce FX 5200 AGP 8x 256 MB DDR
Creative Labs Sound Blaster Live! 5.1 PCI Sound Card (SB0220)
Samsung CD-RW/DVD Drive Model: TS-H492A/RSWN
Dual Boot openSUSE Linux 10.3/Windows XP Pro SP3
CodeWeavers CrossOver Games for Linux Version 7.1.2
I used the Sold Out Software version of the game, and you can save yourself some time and aggravation if you use the setup.exe file in the root directory of the CD-ROM to install this version of the game rather than the autorun.exe approach.
When I run the game, I use the startup.exe file in the CD-ROM root directory. This starts the game launcher, and if you select the option to play the game, the main menu appears. The odd thing about this menu (and any in-game levels) is that in order to select an option, you have to click about 1 1/2 inches above and 2 inches to the left of the option you want to select. Some people find the Myth series difficult to play with its peculiar play and camera controls, but this added difficulty makes it impossible to play. You can play the tutorial and the game, but you still have to contend with the cursor offset issue. Using a virtual desktop did not affect this problem.
I applied the unofficial Version 1.5 patch from this site: http://projectmagma.net/downloads/tfl/ . This patch fixed the cursor offset issue.
I have not tested multiplayer/network play.