Use Bloomberg (available in the Financial Room of Barcelona IESE Library. Ask staff for password). Enter ECDR.
For looking at dataset, use Compustat or CRSP in WRDS (you need to obtain your WRDS account).
For news, search for IPO or "initial public offering" and company/industry keywords in Factiva and Business Source Ultimate.
Company SEC filings can be accessed through the Search EDGAR facility.
Jay Ritter has an excellent web page of IPO data including data files from the appendices of several IPO papers.
Also, try: