I'v gotten .d64 support working now in the c64 emulator, so now I can use snapshots created with the pc version of Frodo, as well as load .d64 disk images.
.t64 tape support isnt currently working because I havent been able to find a portable fscanf function, and/or figure out how to convert the following code.
Still have sound to fix, and couple issues with the onscreen keyboard. Next will be to figure out a menu for selecting options and .d64 images to mount etc.