mod how yo

[uhaulkid]

I know i am going to get slammed fro this but is there a how to on installing mods, i cant seem to find one.   when i click on installing mods from the mods page i don't see a how to unless I'm looking t it and don't see it?  sorry

[Dannii]

Download the mods first to your computer. Then in the packages section of your admin panel, upload the mods, and then click Apply.

[uhaulkid]

Well I got that, thanks, now I get this:?

2: copy(/home/mymotley/public_html/boards/getid3/getid3.lib.php) [<a href='function.copy'>function.copy</a>]: failed to open stream: Permission denied
File: /home/mymotley/public_html/boards/Sources/Subs-Package.php
Line: 961

what ya think?
I ran the install man and got this:?
SMF Arcade Install & Update tool

Install
Checking database differences
Connected and Selected Database
Finding tables... 46 tables in database
All queries done, there were no errors

what simple thing am i missing.....