Glad to hear that worked. On your new issues:
1. To hide the axes, go to NodeXL, Show/Hide, Graph Elements in the Excel ribbon and uncheck Axes.
2. By having "the cells locked," do you mean you've locked them via Excel formatting? NodeXL doesn't lock vertices that way. You can lock all vertices like so:
A. In the graph pane, right click anywhere and select Select All Vertices.
B. In the graph pane, right click anywhere and select Edit Selected Vertex Properties.
C. In the Vertex Properties dialog box, set Locked to Yes and click OK.
This just fills in the Locked? column on the Vertices worksheet, so an alternative is to fill in the column manually. The column is hidden by default; show it using NodeXL, Show/Hide, Workbook Columns, Layout.
3. You're saying that the Zoom slider near the top of the graph pane is all the way to the left and some vertices are still outside the graph pane?