Insert vertical text in a horizontal East Asian document
From Microsoft Office Word 2003
On the Insert menu, point to Text Box, and then click Vertical.
Click or drag in your document where you want to insert the text box.
When you insert a text box, a drawing canvas appears around it, but you can drag the text box off the canvas if you want.
You can specify that the text box automatically expands to fit the text within it. Select the text box, and then click Text Box on the Format menu. On the Text Box tab, select the Resize AutoShape to fit text check box.