R help - Feb 2010 - Name for factor's levels with contr.sum

Hi R-useRs,

after having read

http://tolstoy.newcastle.edu.au/R/help/05/07/8498.html

with the same topic but five years older. the solution for a contr.sum 
with names for factor levels for R version 2.10.1 will be to comment out 
the following line

#colnames(cont) <- NULL

in contr.sum i guess? by the way, with contrasts=FALSE colnames are set, 
so i don't know what the aim is to avoid this with contrasts=TRUE?

best regards

Andreas