Topic: Help w/link cables plz

[Speedmeth]

I'm having troubles w/the link cable I'm trying to use to trade pokemon w/my sister.  I have Crystal version and she has the Silver version.  She has a regular GBA and I have the SP (which I don't think should matter).  We've tried the Ninteno brand cable it didn't work and now we've tried a third party cable and we can't get that to work.  It says "you're friend is not ready"  or some crap like that.
Any advice would be much appreciated.