Can anyone identify this shower cabinet ???

[ataboy]

I've just bought a little half finished house in France and in the upstairs bathroom is a shower cubicle.Probably about 3 - 4 years old but the Valves and adjusting knobs are incomplete and broken.
Firstly I would be really grateful if anyone can identify the cabinet so I can speak to the manufacturer or alternativly tell me how to remove the adjusting knobs in the shower cubicle so I can then remove the whole valve assembly from the rear and get a replacement. I pushed - pulled twisted and screwed the knobs and am now defeated as to how to remove them.
There are 3 pictures in the album
I of the valves at the back
I of the knobs I can't remove from the front
1 of the complete shower cubicle I hope someone can identify for me
Thanks a lot

//www.diynot.com/network/ataboy/albums/

 

[Bankrupt]

Bump

 

[ataboy]

The previous owner of the property bought nearly all his stuff over from the UK (Wickes or B@Q that sort of thing) but because its a few years old it needs someone who has worked a lot with shower cabinets to recognise it.
I was hoping the distinctive wavy line on the glass would help.

//www.diynot.com/network/ataboy/albums/