R help - Aug 2006 - R and time series

Hi, I'm new here.

I need to use R to analyze a particular time serie.
I have to estimate the pubblication of a news of an online newspaper,
for example in the CNN site.

I have many text files and every file correspond to a day. In every
file I have two columns:
1) in the first column there is the pubblication time of the news
2) in the second column there is the distance, expressed in seconds,
of this news from the previous

I think I can use the Holt-Winters method, but I have some doubt.

Do I need both columns or is sufficient just the first?

Do you have any helpful suggestion?
Sorry if my problem sounds strange.

Thanks, bye.
Carlo