Burt Bacharach will forever be associated with the '60s. Tunes like "I'll Never Fall in Love Again," made famous by the velvet-voiced Dionne Warwick, defined urbane cool. They also do quite well in today's world of musical comedy, as Main Street Theater's production of Bacharach's Promises, Promises made clear. Spun by director Rob Babbitt into a lively froth, the musical, about corporate life in the '60s, featured a charming Joel Sandel as the much put-upon C.C. Baxter. There were also four stoogelike executives (is there any other kind?), played by David R. Wald, Mike Lovell, Robert Leeds and Terry Jones, who made life miserable for Baxter as he tried to get ahead in the dog-eat-dog world of corporate America. The goofy musical, about bad behavior in the high-rise world of big business, was just the sort of medicine our city of major corporations needed.