But I think, that's clear, what Fleer have written:
1. Enter Find Mode (clear the "Restore find requests" and "Pause" checkboxes)
2. Set Field "fldName", ">1000"
3. Perform Find (clear the "Restore find requests" checkbox)
That's all. But you have to be careful, what the data type of the field being searched is. You can use Set Field "fldName, ">1000" script step for Text and Number data types, but you cannot use this for Date nor Time data types.
If you want to search for dates >1.1.2002, then you have to use Paste Result or Paste Literal script steps (and have the field being searched on current layout). You can use one of these two script steps for Text and Number data types as well...