help me pls

[ajithkumarts]

recently i install virtuemart 2 on my joomal.....all are fine...........but here one problem...that in home page not display the product thumb image(in featured window,most popular,latest) ....



but when a product search and find it shows the thumb image and full correctly

i already change the components folder permission to 7 5 5.....to 777 wise-verse...but not any change... i am new in joomla....

any one pls help meeeeeeeeeeeee