hey Will....what format you want them converted to???
**EDIT**
I have converted the tiff tile to BMP and ended up with 16MB file which when zipped, bumps down to 6MB
by the way the file is a 32-BIT TIFF, that is probably the main reason TG2 wasnt taking it. In order to convert it into different file format, you have to bring it down to 8-BIT
To do that all you have to do is in photoshop,
Image -> Mode -> 8-BIT
you can try this on your computer and see if it works, if not then I will email you the converted file.
I would suggest you to leave the file in TIFF format, that way you wont lose as much detail as you would do by converting it to BMP or JPG format.