R help - Jan 2011 - gamlss for censored and truncated distributions

Dear R Help,

I'd like to be able to use gamlss to generate distributions that are
both truncated and have censoring. It doesn't look as though it is
possible to do this at the moment:
>
gen.trun(par=c(0),family="NO",name="tr",type="left")
A truncated family of distributions from NO has been generated 
and saved under the names:  
dNOtr pNOtr qNOtr rNOtr NOtr 
The type of truncation is left and the truncation parameter is 0 
> gen.cens(family="NOtr",type="left")
Error in eval(expr, envir, enclos) : could not find function "NOtr"

Is there a simple fix for this?

Best wishes
Simon