*install* on vB3.0.3. I used Onkel Tom's workaround in template postbit_ip because postbit_ip has Paul Marsden's Proxy IP Hack Modification v1.1 code in it. His hack is at
https://vborg.vbsupport.ru/showthread.php?t=69295
I've also got
Proxy Detector v3.1
Paul Marsden's modification provides a red coloured gif in place if ip.gif when the post was posted by a user with a proxy server. Has other benefits as well.
Onkel Tom's workaround provides an additional gif to call-up the template information provided in this hack. With all three hacks installed I'm much better informed about my members and which ones may be using other names. Even if they use a proxy server I can see them in Who's Online. I had no problems with the installs but there were quite a few file and template changes and some new templates were created.