Allow guests to view forums but mask/hide usernames?

[tehbasmentdwell]

Hi there, let me explain what i'm looking for.

A while back our forum was under constant attack from an ex-admin of ours, it got so bad that in the end we changed our forum URL and now keep our forum private so he can't find us by googling our usernames. The only issue with this is that we now don't get any new users signing up so we are thinking about opening the site to visitors again.

Ideally i'm looking for a hack that will make usernames hidden from guests but still allow them to view our board content. Have had a good search on this site but can't seem to find anything that can do that (of course i may have overlooked something).

Any help would be hugely appreciated, thank you

--------------- Added [DATE]1382471131[/DATE] at [TIME]1382471131[/TIME] ---------------

Update - we've found this reply for hiding usernames but it's for VB3:

Originally Posted by Hex_legend

why not edit the postbit / postbit legacy, look for $userinfo[username] and replace with:

PHP Code:

<if condition=$show[register]">Not Displayed<else />$userinfo[username]</if> 


Can someone let me know where to do this on VB4.2.2 please and thanks