Search for 'version=' in your Base SC Code, you will be seeing result starts with 'H.##.#' or some Version Number. If it is Version Number and does not starts with 'H', then you are in the latest version. Not to worry much!
Example for the Incrementor is 'Page Load Time' or 'Product Revenue'. To understand the Page Loading Time, you cannot have the counter event rather you use event='Page Loading Time' i.e. Incrementor. Lets say there are two page views with page loading time 2 and 3 seconds. Then if you increment the event by 2 and 3, you will get 2 page views and 5 seconds. So average Page Load Time is 5/2 = 2.5 seconds.