The SEC has widened its probe of AOL Time Warner, investigating the company's former business relationship with PurchasePro, a struggling Las Vegas software firm. In one unorthodox arrangement, AOL gave $9.5M in cash to PurchasePro for $30M in stock warrants in the firm, and AOL booked the difference -- $20.5M -- as ad and commerce revenue. PurchasePro also bought advertising space from AOL and paid AOL commissions for selling PurchasePro software. At least two AOL executives have already retained attorneys in connection with the matter, including David Colburn, who recently relinquished his day-to-day duties. SEC Expands Probe of AOL | 
