the fork is some random fork.. not the one from my nishiki. SO basically I need to get a different fork? the threading and outside diameter is the same on my fork and a (standard)road fork? DOes this just mean the steerer tube on the one I have is .5 mm thicker?

It looks like the only stems I can get are bmx-style "block" stems... I would think since I do have a road-style quill in that size there should be more/different lengths out there.