It seems to work too on alpha 8 but the report get an SQL error :
<?php
user warning: Table 'XXX.uc_coupons_orders' doesn't exist query: uc_coupon_reports SELECT co.cid, co.oid, co.value, co.code, o.order_total, o.created FROM uc_coupons_orders AS co LEFT JOIN uc_orders AS o ON (co.oid = o.order_id) WHERE o.order_status >= 0 AND o.created > 1195686000 AND o.created < 1195686000 ORDER BY co.cid, o.created ASC in /includes/database.mysqli.inc on line 151.
?>