Look what I got today

for free, but with a hitch. The copy I received had two stickers sealing the box, one on top of the other. Upon closer examination the bottom sticker was already opened so it made me suspicious if they placed something else in the box. I decided to open the thing since I do not want Micro up my butt about nsr. Anyhow I noticed that there is an additional duplicate disk 3 for the server install. The other disks are neatly packaged in dvd cases but this one was sitting outside the cases along with the documentation. So I guess im wondering why in the world would microsoft open the box to insert this additional disk. Any suggestions? BTW here's the nice letter that accompanied the software.
Dear XXXX,
Enclosed in this package, please find a NOT FOR Resale (NFR) copy of Microsoft Windows Small Business Server 2003. This copy is strictly for your use internally within your organization, and we're sending it to help you become more familiar with the software.
As part of the Sweet Success with Windows Small Business SErver 2003 Campaign, you are eligible for a For Resale version of the software once you complete the program requirements (including taking the Partner University course and logging once customer success story). The software included in this package is not in place of that for resale copy, but rather, in addition to it.
Windows Small Business SErver 2003 NFR Usage Guidelines.
Per the End user license agreement accompanying the software, usage is defined demonstration test or evaluation. "software identified as not for resale or nfr may not be sold or otherwise transferred for valued or used for any other purpose other than demonstration, test or evaluation. Please note that this does not preclude production use. The software that you are receiving is still the same retail software that would be bought off the shelf and can be used in production as long as it is done in accordance with the above requirements. Thank you for your compliance with the above NFR requirement and for your continued support of Microsoft products and services
Best Regards.