Transfer Photoshop CS actions to Photoshop CS2
Source: Photoshop Support Knowledgebase
Adobe Photoshop doesn’t save individual actions, you can only save actions as part of an action set. To transfer actions from Photoshop CS to Photoshop CS2, put the actions you want to save in their own action set in Photoshop CS, export the action set, then import that action set into Photoshop CS2.
To export actions from Photoshop CS:
1. In the Actions Palette, select the action set you want to export.
2. In the palette menu, choose Save Actions.
3. Specify a destination to save the ATN.atn file. to
4. Click Save.
To import actions into Photoshop CS2:
1. In the Actions Palette palette menu select Load Actions.
2. Navigate to the folder where you saved the exported action set.
3. Select the action (ATN) file.
4. Click Load.