no photos, but it's a relatively easy task - the servo is built into the corsa column so can be spliced into the existing one if required along with a few additional support brackets - the output shaft needs to be turned down a few mm to suit the UJ - the black box just feeds the servo with a square wave at about 200Hz (this normally comes from the cars speed sensor) - varying the freq gives some degree of more/less power assistance
it's quite a popular column to use for adding PS, look up ebay for one - father in law has recently fitted one to his gardner douglas corba rep and he's more than chuffed with it
I'll fit one to the S3 that I'm doing at the moment, will take some pictures then - but not till the weather improves