Once installed, you'll need . .
. . the SciTech video driver. It appears, however, that the IBM sponsored one requires the Software Choice support contract ($200 for 2 years) and the commercial version costs $39. Barring those, you'll have to get the older (free) IBM sponsored SciTech driver from someone who has it.
Video card makers stopped publishing OS/2 drivers when the SciTech driver became available ('cause IBM wouldn't subsidize them any more).
[link|http://www.aaxnet.com|AAx]