yeah in order to FIX them , you'd need to cut these ones out, weld in new ones ($50 per side for parts) then paint etc..
whole job costs a crap ton to do..

my solution: remove as much as i can of the rust, spray down with a rust preventer/paint then from the junkers attach GT/GTP side skirts ( dont know how yet) and bam, rust problem solved...
most GP's out there that are winter driven have this problem, SE or not.. the diff is the GT/GTP people dont see it becuase of the plastic side skirting!