bsbarker - 7:29 pm on Mar 13, 2010 (gmt 0)
Hi Mack, thanks for the reply, but after some more exploration of WHM I was able to resolve this.
For future readers, the answer in WHM was to go to DNS Functions >> Edit DNS Zone and from there select my hostname and click Edit. I then found where the IP address is listed next to the "A" record type, changed the IP to the correct address and clicked Save. Voila, hostname and issue resolved.
Hope this helps someone in the future.