A very important concept in blogging is the concept known as "archiving". Basically if you have months and months worth of posts, you don't want them all to show up on your homepage so you "archive" them.
For our little Athens blog here we will be updating the site very frequently (at least once or twice a day - which is why you need to check in often and post comments :)), so only about 10 posts will remain on the main page. Anything older than that will reside in the "archives" section on the left side of the page, under the LINKS. Just in case you were wondering where a post has gone.
So don't worry kiddies your favorite posts have not gone to blog heaven, they are simply tucked under the covers of the archive link, waiting for you to wake them up.
Give it a try, they're waiting for you...