So I’m not sure if any of you guys have had to work on a Silverlight projects yet or pages that have Silverlight content. I just read the manual provided by Micro$oft and I have to tell you it’s utterly ridiculous IMO.
Graphic placeholders, browser checking, including many different javascript files. It all just seems a bit much for me just to have an install link for a plug in.
Thumbs down.
Sounds like how you SHOULD go about putting install links for Flash : )
Certainly not my decision 
Kirupa’s post makes it seem simple: http://blog.kirupa.com/?p=140
It’s not. Also the xaml is a mess. Trying to mod one of these is no fun.
What exactly are you doing beyond the default configuration? By default any Silverlight project output by Blend or Visual Studio will do all of this for you - placeholder graphic, browser checking, SL version checking, etc. 
Also for modding the XAML, what app are you using?