Gradient question

okay, I'm trying to make my own gradients and it's working. I'm just wondering, how would I save them? Whenever I make a gradient, it doesn't show up as an option and it doesn't change the gradient I was working on. For example, I took the chrome gradient, and changed some of the coloring and stuff, but I can't make it part of the set. If I decide to use another gradient, the one I made doesn't save. I tried save as but it saves the set except for my custom gradient. Do I make sense? I'm using PS7 btw