If you contact your computer manufacturer they should be able to get a Vista installation disc.
Have you checked the Vista Compatibility website to make sure that your printer is not Vista compatible? http://www.microsoft.com/windows/compatibility/Default.aspx
Windows Outreach Team
I've just bought an ACER aspire (4gb ram) which runs vista fine. However my printer is not supported in vista. rather than replace the printer I'd like to try setting up a dual boot system. Or i could just format the drive and go for XP (however XP won't access the 4GB ram).
All the tutorials/guides state that I need the Vista installation disk. The problem is that there was no installation disk with the laptop. Does anyone know of a step by step guide I can follow that doesn't require the installation disk?