[R] Installing/using "glars" package --- Error in library(glars) : 'glars' is not a valid installed package

[lara harrup (IAH-P)]

Hi all
 
I seem to have fallen at the first hurdle with my analysis, I have a set
of binary disease outbreak data linked to a large number of landscape
metrics variables and environmental variables which I would like to as
predictor variables in a Least Angle Logistic Regression using the
glars.fit.s function in the glars package (my data exhibits some
multicollinearity hence the LARS) but when I try and load this in R
(version 2.9.0) I get the following message
 
> library(glars)
Error in library(glars) : 'glars' is not a valid installed package

 
I have the windows binary for the glars package downloaded from the site
below [the glars does not seem to be on the CRAN site, (LARS for linear
least angle regression is and loads fine)] and unzipped in my library
folder.
 
http://csan.insightful.com/PackageDetails.aspx?Package=glars
 
The package is written in the S-dialect but as far as I can tell from
the literature it should run in both R and S-PLUS, the description file
states:
 
'Package: glars Title: Generalized Least Angle Regression Version:
0.1.2'
'This is "S+GLARS" for S-PLUS or R'
'R (>= 2.0)'
'Dialect: S-PLUS'
 
Not sure if this is a general problem with loading an S dialect package
and I need to add some thing else before loading the library if it is in
S rather than R? or if it is a problem with the 'glar' package.
 
Any suggestions/tips most appreciated, thanks in advance.
 
Lara
 
lara.harrup at bbsrc.ac.uk