Will Vbseo work with APC Cache or XCache ?

I am planning to upgrade server and received few suggestions from my host as follows:

Install APC Cache lastest version from PECL :: Package :: APC. Read install guide at HOW-TO: Install APC Cache (alternative to Turck Mmcache/Eaccelerator) - vBulletin Community Forum - please remove Zend Optimizer from php.ini before installing APC Cache. OR try the alternative PHP caching software, Xcache which seems to be a bit faster than APC Cache - How-To: Installing XCache on your RHEL or CentOS 4 Server - vBulletin Community Forum

Will Vbseo Work with this ?

Thanks.

Please explain what exactly are functions of:
Zend Optmizer
XCache
PHP Cache

and how do they differ from each other, sorry a linux server noob here.

Hello,

you will need either Zend Optimizer or Ioncube installed to get vBSEO working. APC Cache can be successfully used in combination with Ioncube.

I have Zend Optmizer Installed as of now.
What do I need to do can you please guide me ?

I am not a server guru it takes me lot of time to learn above things and them implement :(

Hello,

Ioncube loader can be downloaded on PHP Encoder, protection, installer and performance tools from ionCube: Loader Download and here is the installation manual: PHP Encoder, protection, installer and performance tools from ionCube: Loader Installation

You can use this guide to install APC cache: HOW-TO: Install APC Cache (alternative to Turck Mmcache/Eaccelerator) - vBulletin Community Forum

Oleg so I should uninstall Zend and then Install IonCube ?

Once IonCube is installed I should install APC Cache as well ?

Am i correct

That is what I would do and how I have my server setup.

Yes, it would be better to uninstall Zend Optimizer if you prefer using Ioncube+APC Cache.

Does xcache have to be installed by my host, im on shared hosting?

Or is it something I upload to my ftp?

It cannot be installed via FTP, you should contact your host for that.