To VB 03 or VB EE, that is the Question.

I have an application that was programmed in VB 5 (yes, Five). I purchased VB.Net 2003 a couple of years ago to update my application by adding new screens, illustrations and generally make it pretty. A few days ago, I decided to get started on my updates and I found out about these forums and have read about the different versions of VB.  I am not much of a programmer, but seem to be able to get by, however after spending a week with VB.Net 2003, I'm not sure what I've got myself into, everything is different. I do need to print to paper (which seems to be an issue) and while not a true database, my application needs to read and write a file to the drive (specifically a sequential type of a file that is an array in the application, so I can edit it in a text processor if necesssary).  It will need a place to draw graphics so the user can see what goes on when they change their inputs (probably print out the graphic screen).

Since I have to learn the new way to do things, what would be the best way to go   Use the VB.Net 2003 Standard I have, VB Express, or get VB Studio 2005

Thanks,

Keith K