souzagotcha, I hope you don't mind me adding a couple of points as we both use Scottrade.
When I tried to place the following orders I received the, "Your price is too far above the current price etc etc.", I tried from 0.01, 0.009, 0.006, 0.005, 0.0039, 0.0031. When I entered 0.003 as the limit amount the order was accepted.
As far as the GTC parameter, I am not sure whether the limit price amount can be changed throughout the day. Likewise I don't know if a GTC sell order can be changed to no-GTC order through the course of the day. Does anyone else have input about this? I too am not familiar with the ramifications of using the GTC qualifier.
tyia,
viani