Multiple TLC5490s

Hi...am very beginner to Arduino.... Brought a board n some TLC along with some LEDs ..... Now I have done some examples using only one TLC....but how can I do with 2 or 3 TLCs... The Hardware part is all ok.... ie.... SOUT Pin no 17...of first IC connected to Sin Pin No26of second Ic The tough part is d software.....

read many tropics but nothing goes into my head....... >:( :o Senior member Pls help me out...

Thanxx... in advance