The first thing you need to understand about this build, is that I did not create it. It was built by a friend of mine. He claimed he was able to level in 4 days with this build, to level 50. I have not tested the build out. He told me that the build, was overpowered... in healing only. In combat situations, it is an extremely underpowered build. This is only meant as a group healer, not as a solo leveler.
Supposedly, it's like being "hit with a pillow" in combat. Obviously this isn't the ultimate solo leveling build like the rest of my builds. This is a build meant strictly for repeated over and over leveling within dungeons. It's this way, that he was able to achieve level 50 in 4 days playing time.
I cannot tell you when to put your points in, but I will say that with this build, you will never run out of options to heal you and your party members.
Now, if this build isn't for you, or you want to be able to occasionally do other things, such as run around zones, then you are going to need a new build. This could be your secondary build. Though I much prefer mine, this is a good alternative.
I like that it uses the Cabalist tree, for the AOE DPS. The Inquistor has a lot of good DPS spells as well, but they are aimed at one mob, not crowd control like the Cabalist. The Sentinel Spells, will help keep you healed as well.