I am in the middle of experimenting with converting an existing database with lots of relationships. Today, I also could not delete records in a form with multiple lookups after I uploaded the same record multiple times to do testing. That time, I just deleted the form and started over. As for the record listed above, I think I created the company form the first day I started playing with Zoho and it doesn't have any lookup fields (though other tables do lookups from it). I don't know why it won't delete.
Thank you.