Ola, good news are that you don't need nsunix. Bad news is that you need to patch AOLserver to get daemon search working. There is a chance that this patch will get integrated with main distribution of AOLserver but at this time you have to get your hands dirty if you want make it work. Patch is at
http://www.fifthgate.org/ns_sockunixopen.patch. It's against latest CVS sources of AOLserver. You need to run
patch -p 0 < ns_sockunixopen.patch under aolserver directory.
This patch adds ns_sockunixopen tcl command that is needed to communicate with Swish++ daemon.