The only information I have found on Matthew's role as Ian Kipling on ALL MY CHILDREN was a quote made by Matt himself in an interview for SoapCity:
"I did a little stint on All My Children. I was Susan Lucci's daughter's ex-lesbian lover's new fiancÚ. Ian, I think his name was. Daytime really took me by surprise. I was used to this theater background where you get six weeks to delve into things. But at the same time, there was a great spontaneity to it, and you really had to be on your toes."
If anyone out there has any more information on this character, dates he was on AMC, screencaps, etc, please contact me! :)