SO number is in 2 places ....on the radiator support and parcel shelf.
If it's not or looks dodgy walk away.......was this a orange car on eBay for $8k ?
http://www.ebay.com/itm/291872654588

If so the there is a pic of the SO number on the parcel shelf which seems to match the card but I'm no expert on the font typeset for the 63..... Maybe Scott from Harm's could chime in.

2nd,4th & 6th numbers on the parcel shelf look strange to me ....but that's just me.