Man you are good to go. You have two options. the first is to bury the seeds in a stratifying pit much like ginseng and dig it up next fall (2012) to plant. Then you should see the seeds sprout the spring of 2013.
Second option (The One That I Use) is to plant them now just like ginseng seed. You will get some germination this coming spring (2012) but most will come up the spring of 2013. I plant it a bit thicker than some. 4 to 6 seeds per square foot is what I do. I rake back the leaves then broadcast it like I do ginseng seed and recover the bed with the leaves and walk the bed down. This applies no matter if you plant now or wait until next fall.
I am sure you already know this but it does not hurt to plant goldenseal seed in tilled beds. They will grow better, faster and larger in tilled beds in the woods. Tilling does not diminish the value of the goldenseal root. Bigger goldenseal roots grown in tilled beds are fine unlike ginseng which would be the opposite. Also the goldenseal will spread (unlike ginseng) and will completely cover the planting area. It is best to harvest goldenseal roots after 4 to 6 years. Any longer than that they will start to thin themselves out and many will die. I have not planted in tilled goldenseal beds yet. I have planted it like I do ginseng seeds. I have talked to many that do till their goldenseal beds thou and not only does it make a bigger root faster, it is easier to dig at harvest time. I planted a pound last year and a 2 oz last weekend. That's a lot of goldenseal seed. There are about 20,000 goldenseal seeds to a pound if I remember correctly.