Running OSX Tiger Server locally.

Hi guys wonder if you can help. I've got a Headless mini running Server 10.4.11 at work on the sly, I've got Software Update service up and cooking and working on getting NetBoot going too. (Without DHCP) (my server is called tigerserv for reference.) Problem is to get Software update to work I had to change the host name of the server machine to 'tigerserv.local' rather than just 'tigerserv' so that the index.sucatalog file uses the correct paths to the '/usr/share/swupd/html' folder. Main reason for this was the while the updates on the server were listed, they still ended up being pulled from apple as the host name couldn't be resolved. Prior to this work round, I was manually editing the 'index.sucatalog' file. However now I want to get NetBoot working, and it looks like I'll have to revert the host name back as the NetBoot is complaining the host name and DNS don't match. I have an Image set up and its displaying in Startup Disk, I can even choose it and network boot from it (by boot I mean I get as far as Square icon with globe> the grey screen with spinning globe> then the blue screen with mouse pointer.....) but thats as far as it gets. I changed the the host name back to 'tigerserv' and hey presto I reach the installation menu! But then Software Update is bust again :-( I suppose my question is : How do I get both services to run using 'tigerserv.local' as the hostname? If anyone can make any sense out of this post I'd be glad for any assistance :P Cheers Wez.