For the first question. There is no dialogue you have to backtrack and AFAIK you can do it anytime before you revisit Kuldahar. After that you cant go back... There were some different opinions about that and I think some people said you have to do it before you leave Fell Wood...
For the second question... Yes those dragons are way too easy but White Dragons are amongst the easiest of all of their kind... you will find a much tougher dragon later on..
__________________
ZFR
|