All tickets are set to low default. It doesn't mean that they will be answered last, it's just the default setting. It's something that we do not look at when viewing tickets, it's just a setting the ticket system has.
We sometimes read tickets that have priority set to high first, but we do not place favor on any ticket really, we have a policy that tickets are answered according to the time of the last reply. So please do not worry about that.
I am checking this ticket now to see what has been done so far. I edited the title of this thread, so as miakeru mentioned, no one will panic who is on this server. These issues are related only to your site.
As stated in your ticket, your program was disabled due to this:
http://secunia.com/advisories/20198/
I know you said you have used it for years and had no problems, but this security advisory explains why your site was hacked.
When you install 3rd party programs on your site it is very important to sign up for updates to make sure that you are notified by the creator when there are exploits and security problems so you can upgrade/patch your program.
The last reply you received was at 05:09 PM. Please let me know if for some reason you did not receive it.
Nothing too major, so I feel the phpBazaar install is the primary vector by which this account was compromised. I would recommend disabling this script asap to prevent any further problems.
I have also scoured the directories for any files which were owned by the user 'nobody' and removed them if they appeared to be malicious. I did not need to delete the entire images directory, but there were some items which need to be removed.
In the meantime I have unsuspended the account.
Do you have any more questions on this issue?