I personnally tested my urls on the claim form and it worked.
If you are getting a 404 error it could be that your url is made up.
All instawallet urls that have received transactions are in the database.
I have 5 wallets, 2 with coins, 3 empty. They are definitely not made up.
I have them in my bookmarks and in a Word document.
I have tried to access using the bookmarks, and cut and paste from the Word document. Many times with no success. Over the period of over an hour.
Furthermore I have the blockchain addresses for the wallets with coins in them, the precise balances of both wallets and the entire trail from those wallets to your Cold Storage wallet. The one wallet was accessed a couple of hours before Instawallet went down and the balance was there. The other was sent to just before Instawallet went down and the funds were confirmed there on the blockchain.
I've been writing posts addressing you directly for a week and sent multiple PM's to you with many questions, all of which you have ignored. And your response to me now is to suggest I have made up the URL's!?
How dare you?