Having problems overriding templates and css

Hi there

I am trying to make some styling changes but it seems that I am missing something or do not quite understand how template overrides work.

I tried to override ->
/components/com_easyblog/themes/vintage/styles/style.min.css to /templates/ja_social_ii/html/com_easyblog/styles/style.min.css

But somehow this is not working for me.

Also template for ->
/components/com_easyblog/themes/vintage/blogs/latest/default.main.php to /templates/ja_social_ii/html/com_easyblog/blogs/entry/default.main.php

is also not working. What am I doing wrong here? Need help because every time you release new update have to make all changes again.

Thanks in advance
Regards
J.M. Burri