I'm trying to install a new extension into Magento from Magento Connect. Once I paste in the extension key and hit install it brings up a list of 'Extension Dependencies'. For some of them it shows the status as 'Ready to install' but for others it shows 'Wrong version' or 'Already installed'. I've never had this come up before, am I safe to install the extension or could it cause problems by doing so? I am now given the options 'proceed' or 'cancel installation'.