Fetching Jobless Claims from the US department of labour (dol)

I have signed up for a developer account with the (US) department of labour. I am trying to fetch the initial jobless claims data and when using:

http://ift.tt/1Ru0YSF

it works fine except for it shows data from the 60s (i'm assuming the time series is reversed) When I try to skip using the function ?$skip=5 added as such:

http://ift.tt/1Ru0YSF?$skip=5

the api returns xml reading unauthorized 401 (i couldn't post the xml because of the tags :c)