2 problems referencing with the 'Cell' style

I am using the 'Cell style reference and have encountered two issues when updating my bibliography. 1 - Authors with multiple papers published in the same year should appear Hopper et al (2007a), Hopper et al (2007b)etc... according to the order they appear in the document. However, in my document this is reversed so Hopper et al (2007b)comes before Hopper et al (2007a). I have tried refreshing but this doesn't solve the problem. 2 - I have referenced a website in text, however in the bibliography it does not state the website address or date accessed. Is there any way of putting this in without manually editing the bibliography? Thanks for any help!