Well it's not urgent, but we are preparing the demo for the potential customer and it seems strange, that it is not possible to add an item to the basket (I found out in 2011 it was not possible too).
This is not the issue of upgrade SERP. But serverip.dat in this case contains the value: 192.168.88.12:1301, so this is local IP of the server with SERP.
Anyway I don't understand what do you me...