Update from OG 1.3 to OG 2.0 failed

Please help! I need OG running ASAP

There weren't any specific update instructions in the README regarding updates within D6 so I used the process I have done before with other modules. I hope this was right.

1. I disabled organic groups.
2. I also disabled messaging and notifications since I wasn't able to get notifications to send out email notices when someone posted to a group.
3. I deleted OG1.3 from the server and uploaded OG2.0
4. I returned to my site and ran update.php
5. Got the following error message.

Drupal database update

* user warning: Unknown column 'is_public' in 'field list' query: INSERT INTO og_access_post (nid, og_public) SELECT DISTINCT(nid), (SELECT is_public FROM og_ancestry oga_sub WHERE oga_sub.nid = oga.nid LIMIT 1) FROM og_ancestry oga in /home/idcmi/idcminnovations.com/html/sites/all/modules/og/modules/og_access/og_access.install on line 80.
* user warning: Can't DROP 'is_public'; check that column/key exists query: ALTER TABLE og_ancestry DROP is_public in /home/idcmi/idcminnovations.com/html/includes/database.mysql-common.inc on line 322.

Updates were attempted. If you see no failures below, you may proceed happily to the administration pages. Otherwise, you may need to update your database manually. All errors have been logged.

* Main page
* Administration pages

The following queries were executed
og_notifications module
Update #6001

* No queries

og module
Update #6203

* ALTER TABLE {og_ancestry} DROP is_public
* CREATE TABLE {og_ancestry_new} ( `nid` INT NOT NULL, `group_nid` INT NOT NULL ) /*!40100 DEFAULT CHARACTER SET UTF8 */
* INSERT INTO {og_ancestry_new} SELECT DISTINCT * FROM {og_ancestry}
* DROP TABLE {og_ancestry}
* ALTER TABLE {og_ancestry_new} RENAME TO {og_ancestry}
* ALTER TABLE {og_ancestry} ADD PRIMARY KEY (nid, group_nid)

og_access module
Update #6201

* CREATE TABLE {og_access_post} ( `nid` INT NOT NULL, `og_public` TINYINT NOT NULL DEFAULT 1, PRIMARY KEY (nid) ) /*!40100 DEFAULT CHARACTER SET UTF8 */
* Failed: INSERT INTO {og_access_post} (nid, og_public) SELECT DISTINCT(nid), (SELECT is_public FROM {og_ancestry} oga_sub WHERE oga_sub.nid = oga.nid LIMIT 1) FROM {og_ancestry} oga
* Failed: ALTER TABLE {og_ancestry} DROP is_public
* CREATE TABLE {og_ancestry_new} ( `nid` INT NOT NULL, `group_nid` INT NOT NULL ) /*!40100 DEFAULT CHARACTER SET UTF8 */
* INSERT INTO {og_ancestry_new} SELECT DISTINCT * FROM {og_ancestry}
* DROP TABLE {og_ancestry}
* ALTER TABLE {og_ancestry_new} RENAME TO {og_ancestry}
* ALTER TABLE {og_ancestry} ADD PRIMARY KEY (nid, group_nid)