Title pretty much says it all. If you find the perfect offer when it comes to details, but the looks of their landing page sucks so bad that you just can't build your landing page to match that shit, what tricks are there to overcome this?
Express your concerns to the advertiser or account manager. Often times these advertisers need and want feedback...yes some of them aren't swift enough to know their LP sucks.
Listen to Dlow. An Advertiser wants to maximize sales and telling them how to improve their landing page is downright altruistic if they didn't have an affiliate program.
Help them help yourself. Tell them it's unattractive and you suggest reforming it as it can boost their revenue because the traffic you're sending them with convert better. Any business with any self-interest isn't going to say no.