Source Question, and possbile problem

[ComputerFreek]

Hey,

I got three mods i want my CS:S Server to be able to run. I have modded Counter-Strike 1.6 server so i feel i have some sort idea of what i am getting into.

My question is mainly that all of these modes need me to over right files; the problem is when i do this won't that damage the mod i installed before that? Like CS:S death match and zombie and mani command all require the same file to be written for it self. Now do i have to go in and edit the text file or the file so it can run those?

The complete list of things i wish to add:
1. zombiemod
2. CS:S DM
3. cal_cfg <-- that was easy!
4. mani_admin_plugin_v1_2

Now all of these need me to over ride each file in the metamod folder that is called metaplugins or something. Do i add to it?

And i noticed that two of these already have the mani_admin and the zombie in the list.. they have both the forward and backward /. ( / and \ ) does that mean anything?

If any one knows what the hell i am doing and they can help that would be awesome!

Thanks
Kyle