multcomp and lme

I suppose that multcomp in R and multicomp in S-Plus are related and it 
appears that it is possible to use multicomp with lme in S-Plus given the 
following correspondence on s-news

sally.rodriguez at philips.com	12:57 p.m. 24/04/03 -0400	 7	[S] LME summary 
and multicomp.default()

Is it possible to use multicomp with lme in R and if so what is the syntax 
from a simple readily available example such as the data frame HR in the 
library SASmixed?.

Thank you very much.

Peter B.