I just installed my CMS and it tells me to do this

Your configuration file or directory is not writeable, or there was a problem creating the configuration file. You'll have to upload the following code by hand. Click in the textarea to highlight all of the code.

then it gives me a code. Where should make the file to put the code in?

Thanks Habnow

Also when I installed I get this PHP version >= 4.3.0 Yes
- zlib compression support Available
- XML support Available
- MySQL support Available
- Note: MySQL Strict Mode is not support
configuration.php Unwriteable
You can still continue the install as the configuration will be displayed at the end, just copy & paste this and upload.
Session save path /var/lib/php5, Unwriteable

How do i change them from un writeable to writeable and one more thing

Directive Recommended Actual
Safe Mode: OFF: ON
Display Errors: ON: ON
File Uploads: ON: ON
Magic Quotes GPC: ON: ON
Magic Quotes Runtime: OFF: OFF
Register Globals: OFF: OFF
Output Buffering: OFF: OFF
Session auto start: OFF: OFF

On the first oneit should be turnd off but how to I change it ?

Safe mode can not be enabled