Wouldn't think you can access Access from Unix through ODBC.. (please correct me if this has been done.. a quick search didn't return anything usefull).
How about the following : you run an IIS (or your choice of webserver) on that windows machine with a CGI script (perl ofcourse (: ) that accepts a query/odbc name as parameters, then goes off to query your access database through DBD::ODBC and returns you a resultset delimited and separated as whatever you want.