I think u can do it with haussler, but not in 2008. On my game in 2011 he has 73 on mountain. But I have only trained him on sprint and cobble. I guess if you train him on mountain and send him to camp, you could make him a good climber too.
i won a mountain stage in the giro with Bennati, but that was because i sent him in a breakaway to grab points in an intermediate sprint. that stage i also got second, with cunego, 40 seconds back or something.
In my career, McEwen won one of the hardest mountain stages in Tour de France with 13 minutes down to Denis Menchov, who was second McEwen had 52 in mountains, and i simulated the stage