Hint #2 added March 21, 2012, 9:14pm

In the world of spies there can be misdirection
Making it difficult to make a connection

Between the cacher in search of the FTF prize
And the key to a puzzle that’s deep in disquise

Once you get closer, you’ll come to know better
That Spellbound codes can be comprised of number or letter

So as you head off to play with your spy gadgets and widgets
Just keep in mind that in spy terms letters can be digits

***

Hints 3 & 4