Japppix openfire plugin css changes apply

Hi,

I am new to openfire and jappix i had installed the openfire along with the jappix plugin and i made some changes in the jappix/css and i restarted the openfire even i deleted all the files in the store/cache folder except index.html before restarting the openfire but my css is not getting reflect

Can anyone help me on resolving this…Thanks in Advance…