This will sound like a cop out answer but it is the truth: increase the PR of your pages. According to Matt Cutts this is a big factor in this.
stymiee
He's No Good To Me Dead
3,360 posts since May 2006
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1) Get links to the internal pages. If they have good content on them you can submit them to various places. Kind of hard to be specific about this but while it is harder to get deep links it certainly is possible.
2) Get PR to your home page and channel it to your subpages.
stymiee
He's No Good To Me Dead
3,360 posts since May 2006
Reputation Points: 161
Solved Threads: 38
Link to them. Remember, PR is transferred through links. Linking to your own pages raises their PR.
stymiee
He's No Good To Me Dead
3,360 posts since May 2006
Reputation Points: 161
Solved Threads: 38