New Posts Appear Below Old Posts And Not Above Old Posts!!

Try another theme, e.g. the default or the classic and see if it works correctly. If yes, contact the theme author.

i tried changing the theme, but the problem is still there!

In that case there is something wrong with your whole WP install or the server.

the WP install was done automatically by my cPanel!

That’s never a guarantee for being OK… on the contrary.

i think the problem lies in the php file. Do i need to edit it?

What do you call “php” file?
Every file in WP is a php file.

please help!! I even reinstalled, but the problem is still there!!

Maybe a plugin. Disable all your plugins one by one and check when the blog returns to normal.

ok let me try!!

i deactivated all, but the the problem that i still there is that the posts made in the default category that comes with wordpress always remain on top and the posts made in categories made by me come below it!

Ok i figured it Out!!

The problem was with the post Date!!

Thanks For Helping me out!!