Migration from Joomla 1.5 and CP 1.98

Hello,
I migrated a Joomla 1.5 Website with Custom Properties 1.98 to Joomla 3.3.3 an CP 3 with the help of the extension Migrate me. Now in Joomla 3 I see my old properties in the component and also in the articles. But when I try to create a menu item to the custom properties component I get the following error:
"1054 Unknown column 'f.required' in 'field list' SQL=SELECT f.id AS f_id, f.name AS f_name, f.label AS f_label, f.field_type, f.required, v.id AS v_id, v.name AS v_name, v.label AS v_label, v.`default`, CASE WHEN v.name = "" THEN 1 ELSE 0 END AS is_separator FROM jos_custom_properties_fields AS f INNER JOIN jos_custom_properties_values AS v ON (f.id = v.field_id ) WHERE v.id = 15 LIMIT 1"

and in the Search module "Component not configured: missing fields." and in the tag cloud module "Tags not found"

The migration component imported everything from the old db But it seems to have changed the prefix as I don't have anything with the original prefix in my new db.

Can you please help me to sort this out?

thank you!

Foreword: I don't know how the 'Migrate me' extension works.
Apparently it copied the original table verbatim to the new database, which is not the totally right thing to do because newer versions of CP have a (slightly) different DB structure compared to older ones.

The following queries are meant to upgrade the existing table:
Please replace '#_' with the appropriate table prefix.

you mean, if I make the following queries in my new joomla3 database, it should work with cp3? I will try that!

That worked in the past, in similar circumstances.

ok, here are the errors to each query:

ALTER TABLE `#__custom_properties_fields` ADD COLUMN `modules` varchar(255) NOT NULL AFTER `field_type`;
--> #1060 - Duplicate column name 'modules'


ALTER TABLE #__custom_properties DROP KEY `c_f_v`; --> #1091 - Can't DROP 'c_f_v';
--> #1091 - Can't DROP 'c_f_v'; check that column/key exists


ALTER TABLE #__custom_properties ADD `ref_table` VARCHAR(100) NOT NULL DEFAULT 'content' AFTER `id`;
--> #1060 - Duplicate column name 'ref_table'

ALTER TABLE #__custom_properties ADD UNIQUE KEY `t_c_f_v` (`ref_table`,`content_id`,`field_id`,`value_id`);
--> #1061 - Duplicate key name 't_c_f_v'

ALTER TABLE #__custom_properties ADD KEY `ref_table` (`ref_table`);
--> #1061 - Duplicate key name 'ref_table'

/* upgrade custom properties fields to 1.98 */
ALTER TABLE #__custom_properties_values ADD `priority` tinyint(4) NOT NULL DEFAULT '0' AFTER `label`;
--> #1060 - Duplicate column name 'priority'


ALTER TABLE #__custom_properties_values ADD KEY `name` (`name`);
--> #1061 - Duplicate key name 'name'

ALTER TABLE #__custom_properties_values ADD KEY `priority` (`priority`);
--> #1061 - Duplicate key name 'priority'

/* upgrade custom properties fields to 1.99 */
ALTER TABLE #__custom_properties_values ADD `article_id` int(11) DEFAULT NULL ;
--> success

ALTER TABLE #__custom_properties_values ADD KEY `article_id` (`article_id`);
--> success

/* upgrade custom properties fields to 2.00 */
ALTER TABLE #__custom_properties_fields ADD `required` tinyint(1) NOT NULL default '0' AFTER `published`;
--> success



now the error on the menu item is gone, but the errors in the modules remain:

search module: Component not configured: missing fields.
tags cloud: Tags not found

also the properties are not shown in the articles although the plugin is activated and I can see the properties when I edit an article...