(As a side note, X was designed to run on UNIX, the original one. Linux compatability was an odd, but fortunate side effect)
Linux has grown, as a natural progression. People accept that XP will not run on a 386, yet for some reason won't get it through their heads that there have been massive amounts of growth in linux. In all parts. No longer is linux exclusivly a hobby system, it is now a recognized enterprise strenth OS. A 2.2.x system is still most likely too big for that 386. You need to go back, back through the sands of time, and look for an elderly 2.0 system. (Don't go much further than that)