To play Bejewelled 2 with the same gameplay mechanics as Bejewelled 1 (asin the power gems and hyper cubes don't exist), go into Play Game when you first load up the game.
Select the Classic, Action, Endless and Puzzle mode buttons (in that order) at the menu screen repetedly (so you're basically maneuvering the cursor across the screen clockwise). After several rounds, a window will come up saying 'Please Wait', and Original Mode will load up.