This is not intended to be a comprehensive guide to playing but it will give you a start. There are many tutorials on-line and there are many great tutorial books geared to different styles of playing (Celtic/Irish, Country/Bluegrass, Jazz etc). The short scale tenor banjo is a relative newcomer to the traditional scene, but is very effective especially in Irish music.
Most of the advice about tuning and playing are transferable from the mandolin. The obvious differences are that the pitch is lower - like a tenor mandola and the courses are single strings. Because the banjo does not sustain a note like the mandolin and mandola, notes are often struck repeatedly creating ornamentation to keep the tune going - triplets and rolls.
Look at Playing the Mandola for more details especially the right hand fingering on longer instruments.