Hi LesCimes,
I went through this same issue 2 weeks ago when upgrading to HD. The first camera I bought only offered the 'cloud service view', and I ended up sending it back - replacing it with something else (an Axis M1004-W indoor IP camera).
When using an IP camera, WeatherCat will want to grab a JPG or PNG image (believe these are the formats supported). So it is important to buy a camera which offers a URL to allow for 'grabbing' the image. In my case this is http://<camera ip-address>/jpg/image.jpg for my Axis M1004-W. For the previous camera I used (a D-Link 930L), it was simply http://<camera ip-address>/image.jpg (I suspect it could be same for your DCS-2330L).
Unfortunately not all camera's have this functionality, and for those that do, it may require some help from Google as it is not always mentioned in the manual.
Jos