1. Go to Commerce > Memorial & Tribute
2. Hover over your Tribute site and click Bookkeeping
3. Click Manage Initiative Records
4. Search for Last name = name of individual
5. Click Edit next to the name
6. Click on Edit Card and Acknowledgement

Note: You can see who the eCard was in tribute to.  However, the only way to resend the card would be to delete this record from initiative and re-enter the ecard information.