I have these same few 2950s, 3560s, and 2800 series routers that report Partially Successful Config Archive. All show the same description:
VLAN RUNNING Apr 11 2007 16:18:11 CM0012: Unable to create new version on archive $1 Action: Check if disk space is available and directory has required permissions.
I read back through about a year of postings and applied a few of the sollutions such as setting TELNET and SSH as the first two config fetch transport protocols.
All devices can "show running-config brief" ok.
Anything else I can try?
This is really weird. According to this screenshot you are not logged in as MChiaravalle. If you were, you would not be able to rate your own posts.
If you really are logged in as MChiaravalle, I recommend you report this via the "NetPro Feedback" link. Perhaps there is a bug with your Cisco.com account.