If any plugin in wordpress is not working, if wordpress slideshow plugin not working even plugins are compatible with the current wordpress version you are using but they are not working there can be many reasons but the major reason is when you develop a wordpress theme and you miss some important functions to put in your wordpress theme.
WordPress and the plugins you install usually load Jquery and javaScript files using wp_head() and wp_footer function if these both functions are missing in your theme then mostly plugins and wordpress own functionality will not work properly so correct these things and your problem would be solved.
Solution:
Edit header.php there you have a tag </head> before head you have to put the following code php.
wp_head();
?>
now edit your footer.php from wordpress backend or using FTP and insert the following code before </body> tag in your footer.php
wp_footer();
?>
Now your all plugins should work which are compatible with your current wordpress version if you still have any problem please post a question below.