Manage 3 websites

[coppo82]

Hi comunity , i have this big big problem

i have 3 website of the same company where we sale wine .

one website is develop with XT COMMERCE and the other 2 with Virtuemart 2.0.8 C

Ovviusly i just have one storage and i can't manage the storage quantity in 3 different website because different clients will buy products and i will have the same products in 3 website but with 3 different storage quantity

Exist a software or somethingother that permitt me to keep syncronized this 3 website about the storage quantity

how can i create a MAIN WEBSITE for manage a products and prices

thanks a lot