One more from me is there a way of changing the colours and scales of the perf graphs, the one's for localhost looks nice where as all of mines look a very dirty yellow ...any chance could change this that would be great.
I know in PNP you can do templates, but dont know where to do it in XI and am afraid I might break things hence didnt go down much that far.
We don't have any real documentation on this. However you can find the existing templates at:
/usr/local/nagios/share/pnp/templates
Templates are associated with defined check commands, so you can probably copy and modify a template that you like and change the name to match your command definition. pnp4nagios.org may have some better documentation on how they handle their templates.