Or you can install a blog app (like WP) and use it as a CMS, using your sites current design as the theme(which you also have to do for the first option), the pages feature to add your current content and then the blog features for the new blog section.
The second method will be a bit more involved but in the end easier to manage and backup/restore.
probably wordpress would be ok but might not look right on your site, joomla or drupal would work if you were to redo your site you could just use them for everything they are really powerful. Sounds like you don’t want that though, so prob wordpress.
I don’t want to redo this website. I worked to much on it and I don’t know how long is gonna take me to integrate it in a cms.
For future I will use a CMS probably Joomla, but now if you guys think that I can make it in Word Press and I have the freedom to make the design look like the original design I would stick with it.
I just want to know how much is to work with this one. Some estimates would be really appreciated.