Apologies, but the support site had some impaired functions earlier today. They have been resolved now, and perhaps you can try it again?
Try using the quick path feature and enter your 8326 model type. This will then set the site to display info for your model. Next, select the download drivers and software in the left side of the page. This will take you to the drivers for your system.
You could also use the Thinkcenter driver matrix page here, and then click the link for your A52. Checking this out, for some reason the link points to the A53 page and so our support team should update this over night.
The first method I suggested will work for you now, and if you want to check back tomorrow on the second method, you can then bookmark that page for easy reference.
Thanks for joining our forum - hope to see you here whenever you need help!