Joomla just released the security maintenance version 1.7.2. For those who are using Joomla 1.7, we strongly recommend to upgrade to 1.7.2 to avoid as many security issues as possible on your site.

In the meantime, for all our VirtueMart customers, you still can't upgrade your Joomla 1.5 to Joomla 1.7 until VirtueMart release their Joomla 1.7 compatible version. Hopefully they will release the VirtueMart 2.0 soon. But better later with bug-free than sooner but has many bugs.

You can follow this link to download Joomla 1.7.2:

http://www.joomla.org/announcements/release-news/5389-joomla-172-released.html