How can I create a "hill" type chart in Excel?

It seems so simple that I am uncertain if I am understanding this correctly. Have you tried to create a chart? What went right? What went wrong?

If I assume that you intend to have "salary" across the horizontal axis and "# of positions" on the vertical axis:

1) Select data
2) Insert chart -> Line chart -> regular line chart (XY scatter might also work, and may be more appropriate for some data)
3) Excel will have almost certainly guessed wrong in assigning ranges to the X and Y axes, so bring up the Select Data dialog. (Chart Tools -> Design -> Select Data)
3a) Click "Edit" for the horizontal category axis labels, and make sure that it is using the Salary column
3b) Select the first "Legend Series" entry and click "Edit". Make sure this is pointing to the "# of positions" data.
3c) Remove any extra "legend series".
4) Format chart elements as need.

You might also want to let Excel make you a pivot chart. Select your data and headers and insert a pivot table. In the field list box (which you'll see when you enable editing in the attached file) pull the amount to the row labels window and the # of positions to the values window. Select any cell in the pivot table and then select pivot chart, I used the Area chart type. Here is a file that used your data from post #1:
Frequency Distribution Pivot Chart.xlsx
Let me know if you have any questions.