Hello LovestoStitch,
WonderArt is owned by Caron so all you would need to do is contact them and let them know you need a replacement chart for your kit and they will get one out to you. Since they are the manufacturer of the kit, they will have all of the replacement supplies for it. Here is their website and contact information:
http://www.yarnspirations.com/contacts/
1-888-368-8401
inquire@yarnspirations.com
Thank you!
~Kristi @ ELH