Is it possible to iterate through the 'days' so that certain one's can look different to all the other days?
For example, I need to make the 2 days after today a different color to all other days or perhaps give then a different background image.
This Knowledge Base article should get you started in the right direction:
http://devcenter.infragistics.com/Support/KnowledgeBaseArticle.aspx?ArticleID=10064