Wordpress - How to Display Post information using Post ID's

I am running a custom query using a select in a page template, and I have got a list of post id's, how can I get all of the post information for these post's?

I am trying to use the following:
<?php if ( function_exists('the_tags') ) { the_tags('Tags: ', ', ', ''); } ?>

But it is not appearing, also the_title(); does not show the right post.
Do I need to do setup_postdata? as I could not get it working?
My query is : $myquery = $wpdb->get_results($hdqry);

 

$wpdb->get_results("SELECT post_title, post_date_gmt... FROM {$wpdb->posts} WHERE ID = XXX");