Admin New Order [Support Thread]

[nannid]

I installed:
zencart 1.51
edit orders 4.1
admin new orders 3 (version 1.3)

To tets it I used the demo products of the Zencart installation

I have the following problem:

1) I make an order (i.e. from front-end). In attached order1 file, the order apperas correctely in admin
2) I try to modify it (attached file order2)
3) When I click on UPDATE (even doing any modification) the order total is put at 0 (zero) with a strange tax amount (attached file order3).

The same thing appens creating an "admin order", but the problem seems caming from Edit Order rather than Admin New Order.

Some suggestions ?

Thanks