There are tons of places and people who have put out tutorials on how to do a spiral tree. One video I found to be very helpful is this one from this website.
But a couple of thoughts that are petty, but you might not think about. First, I found it easier to work from the inside of the tree at first. My tree was only about 10ft tall. I used a step stool to reach the top.
It's not shown in this picture, is the top of the tree. You can see some of it towards the beginning of this video;
The way it wraps around, you have to zip tie it at the top. With the curve of the tree, you can't hardly reach it with a ladder. I just found this easier to do with a shorter 10ft spiral tree.
In this next picture, I show the stakes that like are used in the Brown Christmas video. Not sure if he shows it or not. I wrap mine around a couple of times (around the stake) and wrap it back up the line. Holds better.
I have seen this mentioned in a few places before. I just thought it was worth mentioning again. To get your stakes out evenly (stakes...huh?....Watch the first video in this post)...take a string, tie it around the pole, mark it on the string...the number of feet you want it out from the pole. You want a 8ft round base...measure out 4ft...etc.
Click on the September archive and then click on comments to see all of the 2009 display blogs. I am going to start blogging with a "Title" and also put the post into the blog so it can be archived by month. Should have done that to begin with. If you are new to this world of "Animated Displays", I suggest you not only read mine, but other blogs. They will help you learn NOT to make the same mistakes others have.