[Cap'n Steve]

That's really weird. Somehow it thinks you already have the quotes table when apparently you don't. Run these two queries to add the tables:

CREATE TABLE $TPquotes (
	quoteid INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
	quote MEDIUMTEXT NOT NULL,
	author VARCHAR(75) NOT NULL,
	userid INT(10) UNSIGNED NOT NULL DEFAULT 0,
	approved TINYINT(1) UNSIGNED NOT NULL DEFAULT 0,
	votes SMALLINT(10) UNSIGNED NOT NULL DEFAULT 0,
	rating MEDIUMINT(10) NOT NULL DEFAULT 0,
	average FLOAT(3, 2) NOT NULL DEFAULT 0.00,
	context VARCHAR(250),
	PRIMARY KEY (quoteid),
	INDEX (rating),
	INDEX (average),
	KEY approved (approved))

CREATE TABLE $TPquoteratings (
	quoteid INT(10) UNSIGNED NOT NULL,
	userid INT(10) UNSIGNED NOT NULL,
	rating TINYINT(1) NOT NULL,
	PRIMARY KEY (quoteid, userid))

As always, replace $TP with your table prefix.