[R] problem dowloading

[R Heberto Ghezzo, Dr]

Hello,
I am trying to upgrade the system:
niu <- new.packages()
install.packages(niu)
commands that have worked in previous instances, now it downloads the packages missing but complains with:
malformed bundle DESCRPTION file, no Contains field
and does this for 
diseasemapping_0.3
EMJumpDiffusion_1.3.4
InfluenceME_0.6
since it stops installing I gave up. Now I tried to Update my packages and after one or two updates the same complain
for FactoMineR_1.12
I used the mirror of Toronto and then I checked the one in Austria given the same error
Using the last R-2.9.0 in Win XP SP3
.
Heberto Ghezzo
Montreal Canada