(Yes, I only have links in my answer. And they tend to rot. But in this case it shouldn't be too hard to find those tutorials, nor is the content very specific. I also somewhat feel there should be some help to this person before his question gets closed)
Try to focus on one thing at a time.
Follow the steps below, they should be self explanatory. If you run into trouble, you can always create a question based on that particular problem.
Doing so, you'll learn much more about programming/Arduino as by copying code (and having no idea how to). Sooner or later you'll run into the problem that people will not give you "ready to use code".
- Get an Arduino to read out a potentiometer. There are lots of tutorials about that.
- Get an Arduino to run a servomotor
- Combine these two.
- Make a wired link between two arduino's
Make the potentiometer control the servo over the wired connection.
Make a wireless link.
Port the wired link to the wireless communication.