As far as I know get-ad and increment-choice are in working order.
I'm not 100% sure how to approach increment-vulnerable, but as you can see I have started to try.
To test the code I just type out a url that might work with some weird id# or a query string but no luck.
TODO: finish inc-vuln, create actual links for each news story and add, create form to upload
new ads on bestSiteAd, and ensure validation of the ad.dtd file.