Doubts about purchasing Hot Cosmetics

hi, are willing to buy the template www.hotjoomlatemplates.com/joomla-templa...virtuemart-template2
actually my requirement is to change only the template virtuemart on my site, I would avoid also edit the template Joomla!
If I bought the package that you propose could be problems in extrapolating the template virtuemart 1.9 to integrate it into my system Joomla 1.5 with virtuemart 1.9?

Another question:
I want to know if the version of this demo here: demo.hotjoomlatemplates.com/index.php?template=cosmetics
which I suppose is virtuemart 2.0 is different with version 1.5 you offer and that I should buy.
Thanks in advance for your reply.

hot cosmetics is available in both vm/joomla versions