Hi Jason
Here is a screen print showing the location of Neptune from an astronomy observation planning application called
SkyTools.
The copy is a 3-panel representation; naked eye, finder scope and eyepiece view. It is set up for my 180mm F12 telescope (2160mm focal length) and a 24mm eyepiece, so your eyepiece view would be a little different.
The naked eye view and the finder view should get you to the right location and you should see the coloured dot that is Neptune. Good luck!
Cheers
Dennis