You can deal with the name of the Window changing by either building the Attach string using string concatenation or by using wildcards (I think). The details for this should be under the Attach command documentation. Check out the "Documentation Bookshelf" document in the QARun folder on the Start menu, then click on the "QARun Language Reference Manual" and search for Attach. You may also want to check out the "QARun GUI Testing Getting Started Guide" in the "Documentation Bookshelf" for QARun, if you haven't already.
In the application that i'm automating the window name changes as per the login company. I have to log in as 10 different companies and check some 70 screens.
Is there any way to make a basic script for all these and modify that for each company.