microsoft.net compact framework

[C_Moffitt3]

I'm trying to download Ifonz onto my mogul but when i go to open the program i get an error telling me that the current version of microsoft.net compact framework is an older version and i will need to download a newer one. i've been to a few sites and downloaded what i thought was the right one. can someone help me with a link to a framework that will work? Thanx