My first thought was to try to filter based on the text. Using a contains didn’t work; I got a message about you can only use a contains on Single line of text, Multiple line of text, or Choice fields.

The solution is to filter based on the integer value:

Listed below are the other values in the enum that you can use for the various states.

public enum SPWorkflowStatus
{
    NotStarted = 0,
    FailedOnStart = 1,
    InProgress = 2,
    ErrorOccurred = 3,
    StoppedByUser = 4,
    Completed = 5,
    FailedOnStartRetrying = 6,
    ErrorOccurredRetrying = 7,
    ViewQueryOverflow = 8,
    Max = 15,
}

Below are a couple of the columns that are found in the Current Item:

Here is the result after running the workflow for an item:

Encoded Absolute URL:

http://server/sites/SiteCollection/Workflow/Lists/RandomTester/1_.000

Server Relative URL:
/sites/SiteCollection/Workflow/Lists/RandomTester/1_.000

Path:
sites/SiteCollection/Workflow/Lists/RandomTester

URL Path:
/sites/SiteCollection/Workflow/Lists/RandomTester/1_.000  

 All of these URLs are pretty much useless except for Path since they all have “1_.000″ appended on the end of them. I think this has something to do with the version number… but why this is on the end makes no sense to me.

What this means then, is that you have to create a URL to the item.

You can copy a link to the DispForm.aspx page and then use the current item’s ID:

http://server/sites/SiteCollection/Workflow/Lists/RandomTester/DispForm.aspx?ID=[]%RandomTester:ID%]