Can someone tell me why I can't execute the Get-InvalidLogins. I set-location to the folder with all the SQLPSX code and execute as follow

PS [TPT60P]>.\Get-InvalidLogins

Unexpected token 'foreach' in expression or statement.

At C:\Documents and Settings\syoung\My Documents\PowerShell\SQLPSX_1.3\LibrarySmo.ps1:86 char:23

+ $ds.Tables foreach <<<< { $_.Rows}

Exception calling "Contains" with "1" argument(s): "Key cannot be null.

Parameter name: key"

At C:\Documents and Settings\syoung\My Documents\PowerShell\SQLPSX_1.3\Get-InvalidLogins.ps1:75 char:37

+ if (!($__SQLPSXInvalidLogin.Contains( <<<< $sqlserver)))

Index operation failed; the array index evaluated to null.

At C:\Documents and Settings\syoung\My Documents\PowerShell\SQLPSX_1.3\Get-InvalidLogins.ps1:80 char:30

+ return $__SQLPSXInvalidLogin[$ <<<< sqlserver]