CREATE TABLE table_name_68 (venue VARCHAR, opponent VARCHAR, round VARCHAR)

What venue did Melbourne Storm played in Rd 7, 2006?
SELECT venue FROM table_name_68 WHERE opponent = "melbourne storm" AND round = "rd 7, 2006"
SELECT "venue" FROM "table_name_68" WHERE "melbourne storm" = "opponent" AND "rd 7, 2006" = "round"