Appointment Calender Repair

Had Gaf member Sphinks make an appointment calender for my business. It has not worked since the day I uploaded it and they refuse to answer e-mails or IM since I already left them a positive feedback. DO NOT HIRE THIS MEMBER!They WILL NOT FOLLOW UP or offer any support! I have the c-panel info and it is uploaded. I need to have it record a different calender for each employee. EXAMPLE: Susie the receptionist comes to work and clicks on our website. ALL employee's names show John Mike Linda Ron She can then click on "Mikes" name and see all his appointments for the day/ week/ month. She can also input more appointments or delete them if the customer cancels the appointment. The calender is up and running it just doesn't show employee's names with seperate calenders. Probably an easy fix for an expert at GAF :-)