Last night a developer added a lib to the project and accidentilly checked it in.  Of course there was no dll on the build machine, and the build failed.  I looked at the ccnet email and site, and saw the build failed, but no details.  I started to comb through the xml file, and relaized that compile.xsl was not catching anything in the <builderror><message>, just what was in <buildresults><message> where the word error or warning appears (' error', and ' warning' in my edited xsl). 

I made a simple change to the xsl and now we are displaying these errors too.  Change is below.  I think ccnet needs a central place to handle xsl's, though, since every change I make to the xsl needs to be made in 4 places at this point  :)

<xsl:variable name="error.messages" select="(/cruisecontrol//buildresults//message[(contains(text(), ' error') and not (contains(text(), '0 error')))]) | (//builderror//message) " />