Oh! I wanted to use OpenCycleMap too, and managed to figure out how to do it. Here goes:
- In Mappero, touch the title bar > Maps > Tiles > New
- Name, UniqID and Cache dir: OpenCycle
- URL: http://andy.sandbox.cloudmade.com/ti.../%0d/%d/%d.png
- Type: XYZ_INV
- Refresh, min: 0
- Format: PNG
- leave Layer unticked and click Save
- go back to the Maps screen > Repositories > New
- Set the Name to OpenCycle and choose OpenCycle from the dropdown list of tiles, click save
- go back to the Maps screen again, tap "Map repository" and choose your new OpenCycle repository from the list
- tap OK

And you're done! Hope it helps.