You should be editing the <profile>.ini file; so, whatever your profile is named, edit that file in, for instance, "C:\Program Files\Tennis Elbow 2009\Profiles." In that file, there will be a section starting with "[Camera]." Just replace all of those lines with what Solarisaint gave you.
If you are just going to use the views and court positions that are being offered by Solarisaint and Manutoo, then you don't need to enable the Devmode. If you want to adjust things, such as move the court around, change the court size (bigger or smaller), change the viewing angle, etc., then you would need to be in Devmode. You do this by making one simple change in the same <profile>.ini file. The setting that you change is under "[3DEngine]," and it is labeled, "Devmode." Just set that equal to 1, so that you have, "DevMode = 1." When you are done with your changes, should you make any, you can set this back to "0."
I have a profile for normal, non-3D play, one for 3D play with Devmode on, and one for 3D play with Devmode off (also one for non-3D play with all skills at 100% for Free mode games. This makes it very easy to switch back and forth.