It is strange that it didn't work for your client. I have just reinstalled VSOM (6.3.2-MR2), wiped the database with a blank, new database and then restored a previous backup and all presets for my Cisco 2900 camera are back and working.
VSOM merely stores the label you give to the preset and to which camera and preset thereon it maps to, but the coordinates of the actual shot and which preset it belongs to (on the camera) are normally stored inside the camera only.
Below are my presets in the VSOM MySQL database. As you can see the information that VSOM stores is very minimal. It's the camera that knows which actual shot belongs to which preset.
mysql> select * from pub_camera_presets_view;
+-----------+------------+----------+-------+
| camera_id | name | position | label |
+-----------+------------+----------+-------+
| 8 | lab-2900-1 | 1 | left |
| 8 | lab-2900-1 | 2 | right |
| 8 | lab-2900-1 | 3 | front |
| 8 | lab-2900-1 | 4 | down |
| 8 | lab-2900-1 | 5 | up |
| 8 | lab-2900-1 | 6 | test |
+-----------+------------+----------+-------+
6 rows in set (0.00 sec)
mysql> select * from bas_camera_presets;
+----+-----------+----------+-------+
| id | camera_id | position | label |
+----+-----------+----------+-------+
| 1 | 8 | 1 | left |
| 2 | 8 | 2 | right |
| 3 | 8 | 3 | front |
| 4 | 8 | 4 | down |
| 5 | 8 | 5 | up |
| 6 | 8 | 6 | test |
+----+-----------+----------+-------+
6 rows in set (0.00 sec)
