Wash it out good and spray the inside of beauty down all over with oil. Pam or non-stick sprays make it easy to do. The leave it empty then run it hot about 250 degrees for a few hours or so to get the stink of paint and stuff out of it.
As for wood use a few small chunks at a time. watch the smoke! You should be barely be able to see it - that's what we call Thin Blue Smoke and that's all you want. White bilowy smoke is bad!
Here's a chart you can download for the type of wood you can use and what you might use them for:http://www.deejayssmokepit.net/Downl...lavorChart.pdf
And one for times and temperature to smoke at:http://www.deejayssmokepit.net/Downl...emperature.pdf