Site link flow suggestions/tips/advice

Hey guys.
So I am wondering what will be the best way to keep old posts from getting lost in my blog. My posts get decent rankings, but once they are pushed of the front page by newer posts, the ranking almost vanishes.

Is putting an "Archive" tab linking to all posts the best way to go about keeping a link to all my posts? This will obviously not have the same effect as the post showing on the front page but hopefully help a little bit?

I do have seo smart link installed but it does not always link posts. The blog is getting so big, and I also don't want to loose all the main page's juice to posts by displaying hundreds of posts on the pages...

doesn't sound like there is a better outcome here is there?
All the posts does link back to the pages...

Any advice will be appreciated
Thanks

If some of the internal posts are getting a lot of search volume then you could look at making the post a sticky on the homepage, or creating a favorites/best of posts type of section that has full do-follow internal links to your blog posts.

If the bulk of your traffic is directed to deeplinks and not the homepage directly then I would probably go with the sticky route.

a sticky post is the best solution for you.