Hmmm, life was going well until I got a report that setting LAA doesn't work in 2.4. Took a quick look and the report is quite right. Hacked net-tools apart and found the problem. There are two fixes for this, one simple and one "right". So I've done the simple one for now, the "right" one will take a little longer.
Memory has turned up for the iMac, I hope this improves the performance of NS 6, otherwise I'm going to put Mozilla 0.9 on the machine.
*Sigh*, looks like my flight is going to be late tonight, again :(