Atributes Error

[robertx]

Dear all .

I have Presta 1.1.0.5 version . I have a bug wit Product Combinations:
For a product i use Group : Colours and Atributes : Black , Pink Etc ... set the price and different Quantity.

For original : 16 as qty
+ atributes : noir : 11 as qty
camel: 1 as qty
maroon :2 as qty
prune : 2 as qty
The Problem is that in Front office on this product i have :

48 item in stock items in stock ???? From where ?
And if i select different colours the qty remain the same .
How i can fix that ?
For example i want to fow me 11 as qty when i select obtion black .

i saw that on version Version 1.2.0.8 it is working perfect (demo for presta shop )
Could i upgrade only the AdminCatalog from Version 1.2.0.8 ?

Thanks for your support .

robert