Ten from Seven - Word Puzzle

Am I just really stupid or is there something wrong with my game. I can see the letters. I can think up answers. But there seems to be no way to input the answers. I have clicked on the letters, clicked every place on the screen, tried typing on the keyboard. How do you operate this game?

iota

I used these words and was thru. LOST,LIES,TIES,SITE,ATES,SEAT,LITE,TILE,SEAL,SOLE,TEAL,LATE. Collecting Spades and lightning was bit difficult and painful.

mistake
I found mist, take, kite, same, make, mike, team, mite, east, time.

ive got courage any help please?

please help me to make up ten words from these letters t-r-d-g-y-a