Do you have any bonuses you can use? Try smashing them with the hammer. There should be some bonus you can build up that will help you.
You can also match the tile underneath the chains. That breaks the chains. But on some levels it's really hard to do that and using a bonus is your only way to break them.
Always try to build up, and use, your bonuses as fast as you can. This is crucial in the later levels.
Also, if you are just about to finish a level, and you still have some time left, fill up any bonus you can before you finish the level off. It will set you up better for future levels.
Gamezebo is another site like Big Fish. It's a place where you can download and buy games. They have a forum too, but it's a lot quieter than this one. Many BF people chat there too. They offer some of the same games as BF but they also offer other ones too.
They offer really good game reviews that can help you decide if you want to spend money on a game.
Best of all, they offer walkthroughs and help for many games. It's under "TIps and Tricks" for each individual game. These are great for some of the hidden object/adventure type games.
Good luck!
Welcome to the Pond!