I try to install it and fix but but everytime i get this over and over again
What is this step for?
Some files need to be writable for SMF to work properly. This step allows you to let the installer make them writable for you. However, in some cases it won't work - in that case, please make the following files 777 (writable, 755 on some hosts):
* attachments
* avatars
* Packages
* Packages/installed.list
* Smileys
* Themes
* agreement.txt
* Settings.php
* Settings_bak.php
Click here to test if these files are writable again.
If you can please help me.
Thanks.
This means that file permissions are wrong on your site so SMF can not install. You need to change permissions on each file and folder to either 777 or 755 so that SMF can read and write to files.