TAD consists of two parts: an SQL back end and an ASP front end. If you can read this file, then you have probably successfuly unzipped the source code. To install the software, you need a SQL server to create the database and a web server (such as IIS) that runs ASP to create the interface. (1) Create the SQL database: (a) Connect to a SQL server as a system administrator (because you are going to create a database and users). You may need to use a SQL client tool such as SQL Query Analyzer. (b) After you connect to a SQL server, open the file "TissueArray_Database.txt" contained in the SQL_Script directory, and execute it (click "run"). The script should create the database and all the tables. It will insert a small amount of data into the tables, including a single user called "ta_user" and some marker data in the "marker_def" table. (2) Create an ODBC data source: (a) Open ODBC data source control, define a data source named "TissueArray", choosing the SQL driver for the connection. (3) Install the ASP pages where your web server can find them. These instructions assume that you have unzipped the source code into the location C:\TestAppl\TissueArray In your Internet Service Manager, define a virtual directory called "TissueArray' that points to this location. The URL for the front page of the interface will be: http:\\hostname\TissueArray\Common\login.asp where "hostname" is localhost or the name of the machine that runs IIS. (4) Open your web browser, point it to the correct location, and login to the application as "ta_user" to test the application.