The International Marina Institute, a subsidiary of the Association of Marina Industries, is urging students to enroll or apply early for its spring Intermediate Marina Management and Advanced Marina Management courses, AMI said in a release yesterday. The November IMM classes, as well as the November (Barcelona) and December AMM classes have completely sold out. The next IMM course takes place in Olympia, Wash., from Feb. 25 to March 1, and the next AMM program is scheduled to be held March 26-31 in Newport, R.I...