Hi,
Thanks for the help. It was really useful.
Please try the one attached to this reply.
INSTRUCTIONS
1.- Install plugin (as normal)
2.- Edit YOUR THEME, every time it said "osc_format_date", change to "osc_format_jdate"
3.- Enjoy
NOTE: I'm not sure if it's working fine or not, but it should, consider it's the first time I use it.
I really tried to find a way to avoid the osc_format_jdate change in your theme, but it's not possible with PHP. Since osc_format_date is a function and already exists, it can not be redeclared. The options were : 1 modify the core of OSClass (which will make your OSClass not upgradable) or 2.- modify your theme (I choose this one). If you don't want to change your theme, modify oc-includes/osclass/helpers/hUtils.php and delete from line 124 to 142 (osc_format_date function, the line numbers may be different!!!).
Please, tell me if that worked