Installation:
1. Copy the folder Dic to the root of your memory card (E:\Dic)
2. Install the .jar to your phone

Usage:
1. Run the PiClip application
2. After you have typed the text, select Options - OK
3. To copy the text to clipboard, keep pressing the pen key, highlight the text with the cursor and select copy.
4. Open application (e.g. Japanese dictionary, or message) and select paste

Not exactly comfortable but this is the only method I know beside flashing your phone.

Tested in N73