How to redeem Non-standard script Tx (testnet instance)
The first redeeming transaction has a scriptSig in the form:

&lt;value to be double hashed&gt; 0 &lt;signature&gt; &lt;public key&gt;


That 7e is a red herring - it's the size of the scriptSig. Similarly, the 10 is the size of the data to be hashed.

The second transaction appears to be attempting to spend a standard output. It appears to be trying to spend this using a key that doesn't hash to the right value.

You can see this by pasting the following script into Bitcoin Script IDE:

042daa93315eebbe2cb9b5c3505df4c6fb6caca8b756786098567550d4820c09db988fe9997d049d687292f815ccd6e7fb5c1b1a91137999818d17c73d0f80aef9 OP_DUP OP_HASH160 e900510876cb689f1db6fa982376c301362b740c OP_EQUALVERIFY OP_CHECKSIG