I created a spiral knights account from online and downloaded the game through steam in attempt to get the spiral sallet hat for tf2. I have earned the mission accomplished achievement but since my accounts are not merged/connected i have no luck in earning the hat. I launch the game through steam, then type in my spiral knights log in info (not my steam account info) and enter the character selection screen, where i can open the steam in-game platform and see my steam account has 0 of the 3 achievements my character has (including mission accomplished). I have tried to follow these instuctions:
Install Spiral Knights through Steam (http://store.steampowered.com/app/99900/)
Start Spiral Knights from Steam. It will automatically bring you to character selection or creation for your Steam account.
Click on the Back button in the lower left corner, or if you can't see that button, hit ESC and log off.
Uncheck the Use Steam Account check box.
Enter your Spiral Knights web account name and password.
You will be prompted if you are sure that you wish to transfer your web account to the Steam account. If you confirm to convert it will complete and you will immediately be logged into the Steam account instead.

but i cannot find any sort of "use steam account" check box on any screen or menu,and i do always start the game through steam....

Any help would be greatly appreciated!