>>> Just how do I access the set-up page for the WAP?
Connect the Wireless Access Point directly to the PC's ethernet port, missing out the Router. If the WAP's IP address is 192.168.2.1, then you will need to give the PC's "Local Area Connection" a fixed IP address in the same Subnet, e.g. 192.168.2.2 with Subnet Mask 255.255.255.0
Configure the WAP and change its IP address so that it doesn't conflict with the router's (change it to something like 192.168.2.20). Then set the Local Area Connection back to getting *BOTH* its IP and DNS Server addresses automatically, connect the PC to the Router again and connect the WAP to the Router. You should still be able to access the WAP's configuration pages via its new IP address even when it is connected to the Router