Ummm, your question isn't one thats easily answered. First I will answer your second question: Creating dynamic webpages is relatively straightforward but, by you simply asking that question, I am going to assume that you have absolutely no background in web development.
www.asp.net
www.asp101.com
http://msdn.microsoft.com
www.4guysfromrolla.com
www.gotdotnet.com
All of those pages will help you along. And to answer your first question, yes it is possible to use ASP to display dynamic images but I suggest that you get started on the above links before you get into dynamic images.
"The one language all programmers understand is profanity."