Kevin -- There are about 10 different Hebrew words and 4 different Greek words that are typically translated into English as "wine," "new wine," "strong drink," or the like. Use of these words is not limited to warnings against drunkenness -- think of the wedding at Cana, for example.
The argument that
some people make is that
some of those 14 terms may not necessarily refer to fully-fermented wine, but may instead refer to the juice of grapes (or other fruits, like pomegaranites) that either has not begun fermenting or is only slightly fermented. Most scholars disagree with that argument.
I've never heard anybody suggest that all of the wine mentioned in the Bible was non-alcoholic. (I have, however, heard suggestions that Jesus would only partaken of the "not-yet-fermented" wine.
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/detour