R packages

[JeenLeen]

I have an odd issue with installing an R package.
I want to install RCurl, and I found documentation at https://cran.r-project.org/web/packa...url/index.html.

However, when I (in R) go to Packages and Install Packages, nothing happens. Well, not nothing. This pops up in the R console:
ls:::menuInstallPkgs()
but nothing happens to show me a list of packages to download.
I don't have admin rights to my computer, so it could be something like that. Regardless, I'm not sure if I can install packages. (I was surprised I could install R!)

So the questions
Where can I find the source code for RCurl, so that I can just copy-paste the code of the package instead of installing it?
I reckon it's somewhere in that link I posted above, but not sure where.

Alternatively, can you tell why I'm failing to install a package?
It has been over a year since I had to, so I might have forgotten.