If then variable problem

I am trying to use an if/then for a link. If the variable value is 'Welcome', I want to replace it with 'index'. This works fine when the variable value is 'Welcome', but when the value is somthing else, it is showing the link as 'var.page_name.php' instead of using the variable value. What am I doing wrong?

Your var TBS field is not correctly open. It misses the open char.

Thanks for the response, but I do not understand what you mean.

is wrong, it should be

Thanks for the help, but I tried that and it did not work:
It looks like I am missing a ']'.
So I tried this, but it did not work either:

The last one should work. Check that you don't have any line-break in you code source over the TBS field.

Sorry, paremeter 'else' doesn't support var fields, but it supports [val].
This should work: