I don't know the details of the aerogarden, but my seed starting method might work:
1) Procure a fluorescent light fixture. The under cabinet types work well. Choose one that will fit a "grow light" tube. (I can pick the fixture and light tube up for less than $20 USD at any big box store.)
2) Install two cup hooks on the underside of a shelf or cabinet. I use a scavenged bookshelf, but anywhere that you want to grow works well as long as you can mount the light.
3) Hang the light from the hooks by a chain.
4) Place herb pots (in a drip tray) underneath the light. Use the chain to adjust light height as they grow -- it should only be a couple inches above the plants.
5) Plug the light into a timer. Not required but makes life easier. You want it on about 10 to 12 hours a day.
6) Water, fertilize, and do generally what you do with a container garden.