Here are 3 SQL 7.0 whitepapers that Microsoft has posted:

Microsoft SQL Server 7.0 Preparedness Review.

Installing Microsoft SQL Server 7.0.

How to Install SQL Server 7.0, Enterprise Edition on Microsoft Cluster Server: Step by Step Instructions.

See INF: How to Obtain Service Pack 1 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0.

See INF: SQL Server 7.0 Service Pack 1 Fixlist.