Show number of posts in Cat and the number of post…

I’ve managed to put this together:

<?php $category = get_the_category(); echo $category[0]->category_count;?>

Which shows the number of posts in a category but I haven’t been able to find how to make it show that this is post 3 of 45 in the Christmas Category.

Is this even possible?

anyone with any ideas on this? I’m on the brink of giving up!! ??

OK not giving up.

I’ve looked at some pagination I’m not sure that’s the way to go but I have found this:

<?php $count = 1 ?>
<?php $currentpost = get_the_ID(); ?>
<?php $my_query = new WP_Query(array( 'your-taxonomy' => 'specific taxonomy', 'posts_per_page' => 8 ));
while ($my_query->have_posts()) : $my_query->the_post(); ?>
<li class="page-numbers"
<?php if($currentpost == $post->ID)
{
echo ' id="current" ';
}
?>><a href="<?php the_permalink(); ?>"><?php echo $count; ?></a></li>
<?php $count = $count + 1 ?>
<?php endwhile; ?>

This displays 8 posts of ALL the categories.

What needs to be changed so that it shows the first and last post of the category which the post belongs to?

So I’d like to show < 1 / 45 > for the first post in the category and < 20 / 45 > for the twentieth.