[R] legend problems in lattice

[Ernst O Ahlberg Helgee]

Hi!
Im sorry to bother you but I cant fix this.
I use the lattice function levelplot and I want the colorkey at the 
bottom, how do I get it there? I have tried changing colorkey.space and 
changing in legend but I cant get it right, plz help

btw I'd like to speceify strings to appear at the tick marks and also 
there I fail any thoughts?

cheers
Ernst