Actually...I forgot to mention, when I uninstall "stock by attributes" and installed creinold_SBA5.1_alpha_version1.5_for_zencart_V1.5.0 I got an error with this SQL statement:

INSERT INTO `configuration` VALUES (1295, 'Disable drop down menu when stock equals zero', 'sba_zero_disable ', 'true', 'Set drop down menu to automatically disable when the attribute quantity equals zero:', 9, 6, '2010-07-25 15:29:27', '2010-07-25 14:44:56', NULL, 'zen_cfg_select_option(array(''true'', ''false''),');

The error:
#1062 - Duplicate entry '1295' for key 'PRIMARY'

Looking at my database I can see this entry:
(1295, '<hr>Icons type', 'MODULE_SHIPPING_OZPOST_ICONS', 'jpg', 'Different icon types for different needs. What''s yours?', 6, 35, NULL, '2013-03-03 15:01:17', NULL, 'ozpost::ozp_cfg_select_option(array(''none'', ''jpg'', ''png'', ''gif''), ');

Does the key 1295 matter? Is it directly referenced?

Troy.