BG,
Welcome to the forum ! There are a number of us here from the Chicagoland area...
Unfortunately, I think the remotes you purchased are useless
From the PCA tech section :
Q: I bought a blank valet key for my Boxster S from the internet. I believe the dealer needs to program the key since locksmiths do not seem to have the program. The dealer told me the key should come with a number that is required to access the chip and program the key. Is that true for both the function key and the valet key?
A: Porsche has a 6 digit code to access the Key Learn function for programming of a key head in the alarm control unit. Once you have access to this section you can program the key heads.
A valet key can be programmed without a problem do to it just uses a pill for the immobilizer. The problem that you have is in the remote key head. These remote heads come with a 20 digit key code tag that is attached to it. Without this tag or number the remote cant be programmed.
Scott Slauson - PCA WebSite - 5/2/2007
Link
Nick