Hi Jemi,
I checked your record in our database and it shows you already have one activation for each of your programs (LR, LMh which is Little Math, and LMs which is Little Musician).
On the very top of Little Reader (the title bar), can you please tell me what it says? If it says (Activated) that means you won't need to key in the license key anymore. It means your software is already activated.
If by "Trial Version" you mean that you are only able to play a certain number of days, then it may be that you have not imported your Curriculum Content. Can you please confirm if you were already able to do this? If not, please pop in the Content CDs in the kit given to you.
Please also give us a screenshot of your Little Reader so we can have a better description of what's going on.
I look forward to hearing from you!