To change your project settings and resize into a mobile resolution using Adobe Flash Catalyst CS5 or CS5.5, follow these steps:
- Open your project in Adobe Flash Catalyst.
- Go to the "File" menu and select "Modify Project".
- In the Project settings panel, you will see options to change the width and height of your project. Enter the desired resolution for your mobile device.
- You may need to adjust the positioning and size of your content to ensure that it fits well within the new resolution. Use the Layout and Align tools to help with this process.
- Save your project once you've made the necessary adjustments.
Keep in mind that Adobe Flash Catalyst has been discontinued, and support for Flash as a whole has ended, so there may be limitations or issues experienced when working with this software.