Actually you can make amazing transition effects in Nokia N97 phone by your own self. And the best one adding super cool theme effects into your N97 can be made easily and simple, even you need no computer. But first, you need to hack N97 you want to use. Following
tutorial here you can make it works in around 5 minutes, if you have a developer certificate of course.

When the first step is finished, now you can jump to next steps below:

1. Download c2z patch from this link
2. Extract the c2z patch you download and locate it in E:Patches
3. Open ROM Patcher from the ‘Applications’ menu (or wherever location you have moved it to) and you will see the ‘c2z’ patch.
4. Enable it along with ‘open4all’ from the ‘Options’ menu.
5. Download one of the links below:
- Swipe Style package<.a>
- Zoom package
- Other packaging Styles
6. Open ‘X-Plore’. If you do not have it, then I recommend downloading it as it features the capability of extracting from ‘rar’ and ‘zip’
files.
7. Go to the package you’re downloading and open it. There you will see two folders, ‘effects’ and ’skins’ irrespective of the package you downloaded. Select the two folders and hit Menu => File => Extract To.
8. Navigate to C:Resource and extract the folder into it. Ensure the folder you have extracted are placed in the ‘Resource’ folder.
9. Exit X-Plore
10. Go to Settings => Themes => General
11. Select ‘Options’ and toggle ‘Theme Effects’ off/on. Then leave it in the ‘On’ mode and exit.

That’s it, from now your N97 should have the new effects. One more thing, if you want your N97 have the transitions effects enable each time you boot the phone up, simply go to ROM Patcher and select Options => Patch => Add to auto’ for the ‘c2z’ patch.