[Microsoft Microsoft Visio Viewer 2007 12]

SP1 download link. Although the SP1 download is larger than the original base release was, it is not a standalone installer. You still need to install the gold release.

http://www.microsoft.com/downloads/info.aspx?na=47&p=3&SrcDisplayLang=en&SrcCategoryId=&SrcFamilyId=d88e4542-b174-4198-ae31-6884e9edd524&u=details.aspx%3ffamilyid%3d14C4DE7E-D940-45EC-8D56-EC2FCDF346A5%26displaylang%3den