@Jarkko:
Thanks. I just wasn't quite sure about the relationship between the two. This answered my question.

(well, not sure about the Unified.)

// Prefix with o_base_url (unless there's already a valid URI)

I know it's just a title and won't affect the code, but where is there an URI instead of URL? Was that a typo? I noticed this in some wordpress themes as well, and I just can't get why could this typo be universal... If it's one.

     we r use punbb_version = '1.2.11', now u r published PunBB 1.2.17, pls let me about new feature/module in ur latest version.

"Also how bad are the security holes in the version I have? Do I really need to do this upgrade?"
Bad. Yes.

"These updates seem very messy for novice like me & not explained very well."http://punbb.org/docs/install.html
http://punbb.org/docs/install.html
Replace the references to 1.2.16 on that page to 1.2.17 and everything should be clear to you.

And what you quoted up there seems to be the PHP code for the update script.

'Then remove it from // the root directory.$update_from = array('1.2', '1.2.1', '1.2.2', '1.2.3', '1.2.4', '1.2.5', '1.2.6', '1.2.7', '1.2.8', '1.2.9', '1.2.10', '1.2.11', '1.2.12', '1.2.13', '1.2.14', '1.2.15', '1.2.16');$update_to = '1.2.17'; define('PUN_ROOT', './');@include PUN_ROOT.'config.php';// If PUN isn't defined, config.php is missing or corrupt or we are outside the root directory if (!defined('PUN'))    exit'

I read this & I am lost

this is useful for users who have subscribed for updates.

tcea wrote:

Some users post messages and the next day, they are gone (the messages).

And i did not do that.
Im the only admin.

Have you checked with your host to make sure they aren't cocking something up, i.e: bad backups/restoration?

Yes that's possible, hi.
In fact, the host moved the forum from one server to another.

The forum is ok now and i like the new default skin, specially when you quote someone and you see it clearly separated from your post.

thank you
tcea

Maybe he has some type mod installed that does that

Unless he's running something from cron, they all require manual intervention/participation, that I know of.