Unable to convert 3.0 photoshop elements catalog to 21.0

Catalog differences between versions

There are some differences between the various versions of the Elements Organizer and Photoshop Album. These differences include changes to the location of catalogs, to the catalog database format, and to catalog filenames.

• Elements Organizer, versions 6 and later
• Photoshop Elements Organizer, versions 3, 4, and 5
• Photoshop Album 1 and 2, and Photoshop Album Starter Edition 3

Elements Organizer, versions 6 and later

Default catalog location

Note: In the Catalog Manager, you can select to store and retrieve catalog files different locations. Choose Catalogs Accessible By All Users (default for Windows only), Catalogs Accessible By Current User (default for Mac), or a Custom Location.

Mac OS
Current User: /Users/[Your User Name]/Library/Application Support/Adobe/Elements Organizer/Catalogs/[Catalog Name]\

Windows 7 and Windows Vista
All Users: C:\ProgramData\Adobe\Elements Organizer\Catalogs\[Catalog Name]\

Current User: C:\Users\[Your User Name]\AppData\Roaming\Adobe\Elements Organizer\Catalogs\[Catalog Name]\

Windows XP
All Users: C:\Documents and Settings\All Users\Application Data\Adobe\Elements Organizer\Catalogs\[Catalog Name]\

Current User: C:\Documents and Settings\[Your User Name]\Application Data\Adobe\Elements Organizer\Catalogs\[Catalog Name]\

Supporting files location
Stored in the same folder as catalog.pse[Version Number]db.

Catalog format
SQLite database, stored in a file called catalog.pse[Version Number]db.

Note: Elements Organizer version 7 and later includes the version number in the catalog filename extension. For example, the catalog filename and extension for Elements 9 Organizer is catalog.pse9db.

Photoshop Elements Organizer, versions 3, 4, and 5

Default catalog location
C:\Documents and Settings\All Users\Application Data\Adobe\Photoshop Elements\Catalogs\

Supporting files location
Stored in a separate folder: C:\Documents and Settings\All Users\Application Data\Adobe\Photoshop Elements\Catalog Folders\[Catalog Name]\

Catalog format
Microsoft Access database, stored in a file called [Catalog Name].psa.

Photoshop Album 1 and 2, and Photoshop Album Starter Edition 3

Default catalog location

Windows Vista
C:\ProgramData\Adobe\Photoshop Album\Catalogs\

Windows XP
C:\Documents and Settings\All Users\Application Data\Adobe\Photoshop Album\Catalogs\

Supporting files location
Stored in a separate folder:

Windows Vista
C:\ProgramData\Adobe\Photoshop Album\Catalog Folders\[Catalog Name]\

Windows XP
C:\Documents and Settings\All Users\Application Data\Adobe\Photoshop Album\Catalog Folders\[Catalog Name]\

Catalog format
Microsoft Access database, stored in a file called [Catalog Name].psa.

I am stuck on version 3.0 currently due to this after buying the new 21.0 version... Does anyone at Adobe have a way to convert this? Even if it is a link to a trial version of 7.0? 

In my version of 3.0 there is no convert, move option etc for the catalogs as suggested here https://helpx.adobe.com/uk/photoshop-elements/kb/common-catalog-issues-upgrade-elements.html#main_Diff_Elements345

Version 21.0 can't see the .psa based catalog to convert to .pse