Is it possible to plot data from 2 tabs on one graph?

For example I have one tab with 60,000 records containing data from
1990 to 2000 and another tab containing 30,000 records from 2001 to
2007.

I have excel 2003 so am limited in the number of rows I have.

Both tabs contain data in the exact same format.

Can I plot one continious graph from 1990 to 2007?

Grouping the data onto one tab is not an option due to what I am
trying to achieve with the graph.

Regards,
Ciarán