Suhosin is a 'hardened php' project, and is appearing on some servers causing errors with upload, authorization and such. And we finally tagged it with 'unusable'.
But I bought some server space on slicehost.com to do some dev, and guess what?
PHP Version 5.2.6-2ubuntu4
This server is protected with the Suhosin Patch 0.9.6.2
Copyright (c) 2006 Hardened-PHP Project
So, Imagevue X2 works with Suhosin if everything is properly configured on server. I uploaded, chmodded content/ and imagevue/config and it worked right out of the box. While displaying suhosin incompatibility icon in the corner.
Authorization, upload, and config editing work fine.