GetThumb GetFanart browse button / multiple XBMCs = help

Hi

I setup a Mysql Database for XBMC on my WHS server, I currently have two test XBMC PCs. Shared library / database appears to be functioning.

My question is regarding thumb and fanart images for Artists / Albums. I am using the inbuilt Universal scrapers, I did the initial scan for artist information and most were populated with images but some were not.

Now I plan to contribute where I can to the fanart.tv and audiodb.com websites but in some situations I may want to use the GetThumb or GetFanart browse button and upload my own image.

On XBMC PC #1 (Windows 7) I used the browse button and added a fanart image against the artist Aswad. However looking on the second XBMC PC (Ubuntu) the background image is not showing for this artist on that PC like it is the first one.

I found my Aswad background image on the first PC, it had been cached in to the folder:

C:\Users\Username\AppData\Roaming\XBMC\userdata\Thumbnails\e

So if you have multiple XBMC PCs, you have to upload the image to each of them ? Using the browse button in the Artist Information area ?

What is the best way to manage thumbnails across multiple XBMC PCs?

Many Thanks