Missing Posts from Page 1 to 2 in Loop

Hello,

My website, TCStarlight.com is missing posts when you go from page 1 to 2 on the main index and in each category. The problem is obviously in the loop, but I am not good with coding and can’t figure it out —

<?php endwhile; ?>
				<?php } ?>

                <?php if($paged == 0) { ?>
						<?php query_posts('posts_per_page=4' . '&offset=1' . '&paged=' . get_query_var('paged')); ?>
                        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
							<div class="post-block">
                        		<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
  									<p class="meta"><?php the_time('F j, Y'); ?> - <?php the_time('g:i a'); ?> - <?php the_author_posts_link(); ?></p>
  										<div class="thumb">
  											<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(); ?></a>
                    					</div><!--thumb-->
							<center><span class='st_facebook' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>'></span>
							<span class='st_twitter' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' st_via='TCStarlight'></span>
							<span class='st_pinterest' st_title='<?php the_title(); ?>' st_url='<?php echo the_id(); ?>'></span>
							<span class='st_googleplus' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>'></span>
							<span class='st_linkedin' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>'></span>
							<span class='st_email' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>'></span></center>

							<br />

							<p style="text-align: center;"><?php the_category(' ? '); ?></p>
                            </div><!-- postblock-->
                        <?php endwhile; endif; ?>

                <?php } elseif($paged >= 1) { ?>
						<?php query_posts('posts_per_page=8' . '&paged=' . get_query_var('paged')); ?>
                        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
							<div class="post-block">
                        		<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
  									<p class="meta"><?php the_time('F j, Y'); ?> - <?php the_time('g:i a'); ?> - <?php the_author_posts_link(); ?></p>
  										<div class="thumb">
  											<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(); ?></a>
                    					</div><!--thumb-->
							<center><span class='st_facebook' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>'></span>
							<span class='st_twitter' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' st_via='TCStarlight'></span>
							<span class='st_pinterest' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span>
							<span class='st_googleplus' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span>
							<span class='st_linkedin' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span>
							<span class='st_email' st_title='<?php the_title(); ?>' st_url='<?php the_permalink(); ?>' ></span></center>

							<br />

							<p style="text-align: center;"><?php the_category(' ? '); ?></p>
                        	</div><!-- postblock -->
                        <?php endwhile; endif; ?>
				<?php } ?>

Any help would be greatly appreciated! Thanks.