I don't know about the recipe posted by mickle...but there are some products that might help you.
In cosmetology school I got turned on to the Nioxin line of products. They are usually sold through salons and licensed cosmetologists only, but sometimes because of warehouse liquidators, you can find them at Target or Walgreen's.
They sell an excellent scalp exfoliator and a line of products designed just for thin, thinning and fine hair. If you have a stylist that you have a good relationship with, ask them to order for you and maybe try a sample pack. The website is www.nioxin.com
so you can see what they have to offer.
The affordable route is Sally Beauty. If you go to their website and search on "Nioxin" you will get the Sally version of those products. They really do help and it's worth it to buy a good product. I can tell you that in the case of these products, less really is more. These products will last a long time and I think that they are worth the money.
Let us know what you try and what helps!