OK, I did finally get the page to load correctly and tested the add to cart button, leaving one field unselected, but the validations are still not happening. It does not prompt me to go back and fill out the field. I thought I saw an error flash by on uploading the page, but it was too quick to actually read. Have been trying to find out using the FTP log, but I don't have any idea if that's what's causing the problem!
See page attached
Update: Found no errors in the FTP log