i am not sure how you decided to pick the road bike racing forum, but perhaps this thread should be moved to the general road forum, or more appropriately, the ss/fg forum. (i think you can request a mod to do this, as well as just doing a search of the ss/fg forum to find what you are looking for)
i have at most a partial knowledge of chainline issues. i think it is very typical for ss conversions to move the chainring that they are going to use to the inner position on the spider. i believe they make chainring bolts for this called "shortys," but i am not sure.you can also play around with the axle spacing to try to get the cog in the right position after you have moved the chainring in.
also, google search sheldon brown, and you will be enlightened much more than from my post.