I have joomla installed running fine.
When I install new components, the directories and the files get the owner “httpd:httpd”, instead of “my_user_name”.
By creating a ticket got this resolved, but each time I add something it gets wrong again.
I don’t know if this is a joomla bug, or glitch related to a shared environment.
It is apache 
Joomla uses the httpd user for files uploaded, if you upload via FTP it will be your user ID
mmmh, well these files were uploaded all together inside a .zip file via the browser. The instalator takes the .zip files and expand it inside the joomla directories.
So, I understand that the zip file on the server might get the httpd user, but the uncompressed files, shouldn’t have the original owner?
nope, its all done by httpd so they have that as owner.