display a preview of images / cache folder problems

[yokav]

Hello,

directory of MediaAttach?:
/home/test/beta/modules/MediaAttach
racine html:
/home/test/

I had to set the full path for the upload folder :
/home/test/beta/MediaAttachDocs

but I had to set the full path for the cache folder too (which must is relative) :
/home/test/beta/MediaAttachCache

if I set /beta/MediaAttachCache, beta/MediaAttachCache, /MediaAttachCache or MediaAttachCache? it doesn't work!

The real problem is when I'm trying to display a preview of image (into the upload folder from the administration) the
path to the generated image is http://www.test.com/beta/beta/MediaAttachCache but it must be
http://www.test.com/beta/MediaAttachCache