error in the back office

[mhasero]

Can anyone met with such a mistake, it is not possible to introduce the gross price, there is no one category in the back office. Shop Version 1.4.4.1

 

so it should look like this: http://imageshack.us...es/593/r5q.gif/

 

 

 

and I have this is as follows: http://imageshack.us...es/196/q1e.gif/

 

 

 

Is there a simple solution to this problem possibly looking for someone who would be able to fix my shop, this small thing but very nuisance.

 

thank you, best regards.