R help - Sep 2005 - strata in crr (cmprsk library)

Hi all, I am aware that crr lacks the "friendly" command structure of
functions such as cph. All is clear to me about including covariates
until I want to include a stratification term in the competing risk
framework (no nice strat command). 

I am still a bit of a novice in R - I am looking for an example to help
me with this, but can't seem to find one. Any advice appreciated (no
matter how simple).

Thanks

Scott Williams MD
Peter MacCallum Cancer Centre
Melbourne, Australia