Jenkins vs Hudson: Complier warnings

[Engler]

I'm having difficulty tring to use the compiler warning plugin on Jenkins.  
I have analysis-core and warnings plugins installed.  I try to add the 
trend graph to the job by configuring the project.  I get the the point in 
the configuration where you get to select the trend graph, when I save the 
changes I get a error, HTTP 404 Not Found.  Plus the Graph images show up 
as red "X"s.  Now I've seen these plugins work on a Hudson server, but I'm 
not planning to move to Hudson.