Cut basically the whole black part if you cant see the line in it, it doesnt matter as it wont affect anything else, just dig deep across where the blade is on these pictures and with a volt meter check to make sure that there is no polarity or ohms reading across those two pads for each the negative and positive side.
http://img518.imageshack.us/img518/851/ledburner1qs8.jpg
http://img250.imageshack.us/img250/397/ledburner2gd3.jpg
Remove the spaces in the http
****EDIT ****fixed linkage {SenKat}
http://img518.imageshack.us/img518/851/ledburner1qs8.jpg
http://img250.imageshack.us/img250/397/ledburner2gd3.jpg
Remove the spaces in the http
****EDIT ****fixed linkage {SenKat}