Credit Card Scoring and FICO Score

[Anonymous]

After paying off a large balance on a credit card and refinacing my home, my WaMu card score jumped 18 points.  While I know this is not my FICO score, would my FICO score increase also?  Would anyone be able to tell by how much?   Thanks!

[Tuscani]

Actually, WAMU is a FICO. See the Scoring 101 thread.