wapcodes are a series of numbers assigned to each upload. they are displayed on the page (viewing on pc) underneath the preview. ~~~~~ they can be found while browsing with your phone, but the process is different for each phone model, so it will not be discussed in this post.
we have a page set up so that users can go to that page and enter the number.
it is just an alternative way of downloading.
many users do not get unlimited text/data and many phones/carriers do not allow mms or clicking on text links. some carriers have gone so far as to block texts from certain sites.
by using the wapcode you can avoid having the file/link sent to your phone and it minimizes the amount of data used because you do not need to surf the site looking for the file you found on the pc.
the basic scenario is this.
surf site with pc.
find file you want.
point phone browser to http://wap.funformobile.com/
enter digits and click download