I found a plugin for 3dsmax8 so it can export mdl format. Hope you find it useful!
Address: http://www.xuduo.cn/DownLoad/MAXtoMDL.rar


"I don't know what the facts are but somebody's certainly going to sit down with him and find out what he knows that they may not know, and make sure he knows what they know that he may not know."
————Donald Rumfeld