Here's the solution i did. Not sure if i'm 100% okay. Feel free to comment!
http://www.screenr.com/VKus
John and Jim are setting up their own ISP and start by configuring BGP between their routers. Because they want to make sure not to advertise too many prefixes they want to configure BGP aggregation. It's up to you to make it happen.
c3640-jk9s-mz.124-16.bin

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Here's the solution i did. Not sure if i'm 100% okay. Feel free to comment!
http://www.screenr.com/VKus
Haven't added my video yet to the article but it's on the Youtube channel:
http://www.youtube.com/watch?v=T9A_tP2vlVg&feature=plcp&context=C255d4UDOEgsToPDskIX-h7wRxojnXoI2usPU8IX