Change comment language and "Older Entries" button

Hi,

I have recently launched a french version of my blog, online on https://www.clonesnclowns.com/fr

However, although I changed the language files, some words are still in English on the French version :

– The date still has st, nd, rd after the number even though the month is written in French
– The comment form has a few bits in English (Submit comment, leave a reply, no comments, 1 comment…)
– The “Posted in” is still in English
– “Older Entries” is still in English

I would also like to enhance the “Older Entries” button on both versions of my site, to make it much bigger and bolder.

I have checked the language file is still all in French and it is. I have also tried to ajust things in the comments.php, the functions.php, the page template.php and the style css but nothing seems to help – although I am more than a newbee !

Thanks very much for your help !