Oregon Small Claims Court forms (including updates) are available at the OJD Uniform Trial Court Rules (UTCR) website.
Additional Oregon Small Claims Court information is available through many or possibly all of the Oregon Circuit Court websites and at county justice courts. (Note: Not all counties have Justice Courts.)
Law libraries and public libraries may have additional information on Small Claims Court, including books, articles, websites, and a recommendation that you visit the Small Claims Court where you will be filing your case so you can see what happens in Real Life.