The problem with using tile saws most the arbor and motor shaft are one and the same. End play can be excessive for use as a table saw. For instance ripping something and having the arbor/blade move in and out will result in a rough cut with lots of splintering from the upcut or trailing edge of the blade. Most tile saws just dont cut it as a table saw conversion. If you can find a Dremel it is the cheapest way to go.
http://www.ebay.com/bhp/dremel-table-saw
Dennis