Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
here the steps:
1. copy /components/com_community/templates/default/frontpage.guests.php to /templates/joomlage0063-precision/html/com_community (create the folder if not exist)
2. put the image at /templates/joomlage0063-precision/html/com_community/
3. edit the copied file (frontpage.guests.php). and changing line 13, from:
We have not received any response back from you in over 7 days, and would like to know if you consider this issue to be resolved. If you have any further questions, simply reply to this post.