G'day all,
I'm setting up a new zencart store (ver 1.5.5) after my webstore being down for a long time, and I have gone straight back to the OzPost shipping module (ver 4.2.4) because it works spot-on, but I've run into a problem...

If I sell 'Item A', with a size and weight that will fit into a 125gm large letter (I use pb1 bags from Australia Post for small stuff), everything works well and calculates out correctly. In the real world, all of my bags go out with a signature on delivery sticker, but there's no option to specify a signature sticker.
With debug enabled, the only signature options on 'letters' are for express, registered, etc...
If I trundle over to the AP postage calculator site, there is also no option to add a signature on delivery to standard letters either, so my guess is that the module is working correctly, but SoD is not part of AP's returned string (even though I do it every day when I post goods out).

Is there a way to add signature on delivery to 'standard letters' in the module and have it show during checkout as a signature cost? (I know I can add it as a handling charge, but I prefer to show the breakdown as "including handling charge: $xxx & signature on delivery $yyy".)
For handling charge, I added a some maths in PHP to calculate a % value of the parcel weight, so I try and treat it as a different item.

Hope all this makes sense!