How to exclude "VAT incuded" by customers groups

Hi everyone,

I've searched into the forum if someone has faced with my necessity but I haven't founded nothing interesting.
By the way, I've 2 customers group:

- private customers
- resellers

Near the product price:
I need to display "VAT included" only for private customers, es. 140 (EUR) VAT included
I need to display only the product price for resellers, es. 140 (EUR)

I've tried to set configuration under configuration panel -> taxes but nothing of all settings has helped me.
How can I do this?
The system version is: 1.60


Thanks in advance for anyone can help me.

superboa wrote:
This requires some customization work

I mean, and I haven't no problem to do this, the only thing I need is the know if there is a customer group variable and in which modules.
Thanks

Hi all, does anyone has some ideas about this issue?

Thanks