NIS Language

Last year I downloaded NIS2010 English version and activated it with the product key of a boxed NIS2010 Polish version. The result was satisfactory - the English version was installed but now I have to renew it and here are my questions:

 

1. Can I download and install NIS2011trial English version on top of NIS2010? If so, will the English (not Polish) version of NIS2011be installed? If yes, then the trial version can be activated with any (language) product key.

 

2. When I click on Express Renewal of NIS2010 I get two options:

 

>  Express Renewal 

 

>  Enter your product key (If you have a subscription renewal code or product key you can enter it here)

 

Will I get the English version if I enter the product key of a boxed NIS2011 English version?

 

As some of you might know the problem is caused by the fact that the product key is for the Polish version and if any automatic upgrade is executed I will end up with the Polish version of NIS2011.

 

It is my understanding that if the answer to the above questions is NO then uninstalling NIS2010 is the only way out. 

 

Thanks for your comments.