FINE, FINE, FINE: Sidney Green of the Spurs was fined $3,000 for initiating an altercation by flagrantly fouling the Rockets' Vernon Maxwell on Saturday night, NBA Vice President Rod Thorn said yesterday. Maxwell was fined $1,500 for retaliating. JACKSON OKAY: Nuggets G Chris Jackson, who has experienced dizziness recently, has been pronounced fit to play tonight at Phoenix following a 24-hour monitoring of his heartbeat.

Allen Schreiber, the Nuggets' team physician, said the monitoring revealed no abnormalities in Jackson's heartbeat.

Jackson sat out Saturday's game against Atlanta while his heartbeat was being monitored.

The rookie has experienced bouts of dizziness in games this season. The most recent occurred Thursday night after the Nuggets' game with the Nets and was severe enough that Jackson had to be assisted to the locker room.

The next day, Jackson was examined by Schreiber, who detected an irregularity in a heart test he said might have been responsible for the dizziness. That's when Schreiber decided to monitor Jackson's heartbeat.HOT ROCKETS: F Otis Thorpe, who averaged 24.8 points, 11.3 rebounds and 3.5 assists per game while leading Houston to three wins in four games last week, was named player of the week. . . . Larry Smith had a league season-high 25 rebounds in the Rockets' double-overtime win over Golden State on Sunday. Smith has four games of 20 rebounds or more since replacing injured Akeem Olajuwon.