BOSTON-Employment Connections, a Boston-area pilot program to employ people with mental illness who are or have been homeless, will be expanded to seven other regions of the state as a result of a $2.2 million, three-year federal grant. More than 90 people are enrolled in the Boston program, which started in December 1994 through the state departments of mental health and employment and training. Of that number, 24 people are working at an average wage of $6.20 an hour. All participants receive mental health services from the state, including clinical support, assessment, case management and help in identifying employment, job training and educational objec- tives. The program will be expanded to Framingham, Lowell, lower Cape Cod, Lynn, Quincy, Springfield and Worcester.