two subdomains, one folder to work with

[Grandioso]

I have 2 subdomains - one for the main site app and one for administration app. Both of these need to work with the same directory - one to upload images and one to read them.

 

So far I have it like this - the main domain is mounted to www_root. In www_root I created a folder for the admin application. The images folder is also directly in www_root.

 

The problem is, I can't upload files through http.

 

So how else can I access a directory that is above the root directory of the current app ?

Or should I rather move the images dir to the admin directory ?