how to implement html in “<?php if…” statement?

I’m trying to get all of this code

<a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><img border=1 border="#999" src="<?php echo get_post_meta($post->ID, 'article_image', true);?>" height="<?php echo get_post_meta($post->ID, 'article_image_height', true);?>" width="<?php echo get_post_meta($post->ID, 'article_image_width', true);?>"  /></a>

<table width="<?php echo get_post_meta($post->ID, 'article_image_width', true);?>"><td><p class="description"><?php echo get_post_meta($post->ID, 'article_image_caption', true);?>
</td><td align="right"><p class="descriptionright"><?php echo get_post_meta($post->ID, 'article_image_author', true);?>
</td></table>

appear only if (is_category() || is_home()) (and have something else appear ELSE), but I can’t get it to work. How do I make the html code read properly? At first I thought I wasn’t doing the “if” commandment properly but it seems I was, and the problem is instead related to how you call on html within a ‘<?php>’?

I dunno that much about php, but I’ve at least tried doing it with “echo” but that didn’t work either.