VirtueMart tax display

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Running Joomla 1.5 and VirtueMart 1.1.0

My products have a VAT of 10%. Until you log in to the site, all prices will be displayed Product Price (Net) - which is the non VAT price. I need prices to display with VAT by default. After you log in then the price should show as either the VAT price (for all Australian addresses) or non VAT (for the rest of the world).

I have put in a simple PHP hack that forces the baseprice to display + 10% tax while you browse the shop, but this falls down during the shopping cart process (the tax drops off)

Skills required:
About the employer:
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