SUSSEX COUNTY-A $1,000 prize is being offered in a special religious poetry contest sponsored by the New Jersey Rainbow Poets, free to anyone who has ever written a poem. There are 50 prizes in all totaling almost $5,000. The deadline for entering is Nov. 5. To enter, send one poem only of 21 lines or less: Free Poetry Contest, 103 N. Wood Ave., PMB 70, Linden, NJ 07036. Or enter on-line at rainbowpoets.com.