In October 2008 release candidates of OpenCart v0.7.9 started rolling out and by January 30th a stable version was released as final.
At the same time Daniel had already started work on an all new version of OpenCart, and has released it to replace the current version.
However, this caused some complications between the different versions.
Daniel suggested that it would be best to fork the 0.x branch to a new domain.
The domain is opencart0.com, and will have it's own forums, of which you will already be a member.
HM2K and Qphoria will are going to continue to maintain and support OpenCart v0.x as they have been doing for the past 6 months.