Perhaps you can add the category to this line:
$lastposts = get_posts('numberposts=-1&category=7');
Replacing 7 with whatever category ID you need to use.
Link to the WordPress Codex page get_posts()
– Parameters.
Perhaps you can add the category to this line:
$lastposts = get_posts('numberposts=-1&category=7');
Replacing 7 with whatever category ID you need to use.
Link to the WordPress Codex page get_posts()
– Parameters.