Normally the S08 has BDM interface for program and debug them. (BKGD, Reset, VDD and GND pins).
If the connector is for this pins that you can use the P&E multilink
http://www.pemicro.com/products/product_viewDetails.cfm?product_id=15320143&productTab=1
But if the customer is using a bootloader you need to check the communication module that they are using like UART, SPI or IIC
I hope this will help you
Have a good day.