Biki is good for vocabulary learning but it would be better to follow a beginners course. I have a teacher for speaking and she runs beginners email courses which are good so check out
http://www.sayitindutch.comor I have been learning for the past three years with The Dutch Language School. check them out at
http://www.dutchlanguageschool.co.ukThey are based in Oxford and do classes if we leave near oxford or they run home courses which I have followed. they are very good.
Shazzy