PJ
I have been looking in to this problem over the weekend.
Basically you just need to transfer the photos to another "hosting" web site and then edit the relative tag for each photograph posted.
The only problem is with trying to find a "hosting" web site, that will not disappear in the future. The hosting websites have to be funded some how and it is usually from advertisements, popups, etc. and if the funds are not available the site has to be closed down.
I already use Imageshack and Photobucket and it is very easy to go over the storage limit.
I am going to dual source my photos so that each photograph is stored on two different hosting sites, so that if one does go bump, it will be easy to edit the links and I will not have to re-upload my pictures.
The link below contains a list hosting web sites.
http://www.free-webhosts.com/free-image-hosting.php