Hey Lindy, I'm PsYcHo_RaGE

so you want to remove the copyright? also can i see your footer, send me in pm if you can't here

this question have been already asked and i have given the right answer, anyways again check below >
goto your theme and click on edit HTML/CSS > now goto CSS Tab > find bimhidecontent.css > open it and you'll find some code, replace that code with this below
.bimHiddenBox { background: #212327 !important; /* you can change with your color you want */ /*border: 1px solid #212327;*/ /*color: #000 !important;*/ } #bimHiddenBoxLine{ border: 2px solid #212327; /* you can change with your color you want */ } baam you can now see it  perfectly

Memcached is best option to set and also when you set any of these caching methods use the MySQL Data Storage Method as it will provide you the best performance if caching is enabled
Differences >
Memcached is a general-purpose distributed memory caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source must be read.
Alternative PHP Cache (APC) Alternative PHP Cache is a free and open (PHP license) framework that caches the output of the PHP bytecode compiler in shared memory, thus reducing parsing and disk I/O overhead for later requests; and a shared memory cache for user data.
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries.

since you are having the IPB 4.3.5...trust me and use the chatbox 3.1.0 its working on my side

can you send us some screenshots so i can better understand the problem

its easy just goto admincp> themes> choose any theme and click on edit HTML/CSS >and now goto CSS Tab > find and click on bimhidecontent.css and replace the all code in it with below
 
.bimHiddenBox { background: #212327 !important; /* change with your color */ /*border: 1px solid #212327;*/ /*color: #000 !important;*/ } #bimHiddenBoxLine{ border: 2px solid #212327; /* change with your color */ }  

use the chatbox app and set the permissions to mods only if you want mods only use and see it
check the app in IPS Community Suite 4.3 Section in Apps and plug-ins

well you just need to go to admincp>members>groups>click on guest group, since they are also called as visitors
and see the below images to get proper demostartion
 

their you can control everything about downloads of certain groups, if you any more questions just ask me