Chatbox - mgc_cb_evo.php - Upgrade, Install or New Chatbox?

[letsroll]

I run a forum which had MGC Chatbox Evo v2.4.2 - created by MGC - Copyright 2009 installed on (VB 3.8.6) It had not been upgraded for a while, maybe 3-4 years and worked great. Recently I upgraded to VB 5 and it was incompatible and apparently no upgrade available. This is what I was told. I am not technical, am incapable of doing anything except basic forum administration/Moderating. I always get others to do anything technical for me, please keep this in mind.

After installing VB 5, it basically ruined my forum, ruined it in more ways then I have time to write out here. Sadly I just had to pay someone 200 bucks to un-install VB 5, and revert back to 3.8.6. After doing this he decided there were too many security holes in it and upgraded it to VB 4, latest version.

Question #1. Will that older version of mgc_cb_evo.php chatbox work on the VB 4 platform?

Question #2. If yes, What needs to be done to install it into the VB 4 platform?

Question #3. If no, is there an upgrade available for mgc_cb_evo.php chatbox?

Question #4. If there is no upgrade available, is there another chatbox available, which can be installed on the top of every page in the forum, (VB 4) which is customizable like mgc_cb_evo.php chatbox was? It is a research forum, and I have found it is a must for our community to have it at the top of every page in the forum, so wherever you are, with whatever question or help is needed, it can be easily asked and accessed to get quick replies.

I prefer the chatbox I had, it was easy, very functional, customizable from Admin CP and had multiple channels.

Hopefully I can get some help on this from other users who have had this same problem and/or the Admins here.

Thanks for your help--

Cheers-
Phil