Strange messages when trying to create new category

[Penn Wooding]

I have started to create a website that will incorporate a virtuemart store. I am using Joomla! 2.5 and the latest version of virtuemart.  However, for the first time I am going to create the website on my local machine first, and then once it's finished put it onto my server.  Now I've just gone to create a new category and I have a bunch of "Strict Standards"message lines come up.  They don't appear to be error messages, in fact, I've never seen anything like this before.  I'm just wondering whether they have, because I am not creating the store on a server, rather on my local server.  I have included the lines in this post, I would appreciate it if someone could let me know what they are.

Strict Standards: Accessing static property TableCategories::$_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 59

Strict Standards: Accessing static property TableCategories::$_query_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 60

Strict Standards: Accessing static property TableCategory_medias::$_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 59

Strict Standards: Accessing static property TableCategory_medias::$_query_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 60

Strict Standards: Declaration of VirtueMartModelMedia::store() should be compatible with VmModel::store(&$data) in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\models\media.php on line 392

Strict Standards: Accessing static property TableMedias::$_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 59

Strict Standards: Accessing static property TableMedias::$_query_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 60

Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\models\media.php on line 80

Strict Standards: Accessing static property TableCategories::$_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 59

Strict Standards: Accessing static property TableCategories::$_query_cache as non static in C:\xampp\htdocs\demon\administrator\components\com_virtuemart\helpers\vmtable.php on line 60

[jenkinhill]

Your PHP version is probably 5.4+ ? And you have not turned off error reporting in your php.ini  - in that case see http://forum.virtuemart.net/index.php?topic=102555.0