What information do you want conky to display?
1. You'll probably want to go to the conky project homepage and find the chart of all of the config file values and the chart of all of the display variables.
2. From there you should probably set up the config file with the config values. then pick the info you want to display and set it up one per line, tweaking it until it works.
3. Then go back and from the top down set up the positioning, color, font of the displayed elements.
4. You will never be finished/satisfied so go and figure out how to do the LUA stuff.
Also, the workflow goes like this (for me):
Edit create your conky file in gedit
start conky with the file created in the previous step. Later versions of conky will reload after you re-save the conkyrc file. Also, you might need to build conky from source if you want the very latest version or if you want to enable something that isn't enabled in the repository version. Have fun!