Lol there's no confusion here :thumbsup:
This is an issue that raises it's head quite often! The run out model B6's before the B7 came out were badged as S-Line's, and are ALL 1.8T 190's in fwd or quattro format. They come with S-Line badging on the doors, brushed metal kick plates, perforated leather steering wheel and gear knob and probably a few more bits and pieces. They will also have S-Line on the V5.
From late 2003 on all the Sport models came fitted with an S-Line 'style' kit, ie same front and rear bumpers and door blades produced by Quattro GMBH and known as the GMBH kit. These are NOT S-Lines (sorry....) but can of course be made to look like one with a few badges off ebay.... That link is wrong unfortunately. What you have is a 1.9 Sport with GMBH kit.
I hope that makes sense and isn't too disappointing.