If you've been having trouble for 5 days you should have asked for help sooner.
You don't need both of those zip files. Just use the mojoportal-2-2-6-8-mssqlreleasefiles.zip
Unzip it, configure an IIS Virtual directory or web site pointed at the web folder that was extracted (you can put this folder anywhare and you can rename it as well). Make sure the IIS web site is configured for 2.0 ASP.NET. If using Vista or Win 2008 you must configure the IS web with the "Classic" app pool.
Right click the folder and chopose properties, then click the Security tab and enable permission for the IIS user (ON Win 2003 it will be IIS_WPG and on XP it will be aspnet_machinename, on Vista/Win2008 it will be NETWORK SERVICES)). Give that user read permission on the whole web root folder, then give it full control permission on the Data sub folder.
Set your connection string in Web.config
Open a browser and visit /Setup/Default.aspx so it can run its install scripts on the database.
If you get an error, post the whole error message and give details of your operating system and database version.
Hope it helps,