Interacting with Web Site

I'd like to create a script that logs into a web site, requests a list
files available for download, downloads the necessary files... then
once downloaded, checks the "delete" checkbox next to them to delete
them from the list.

I have a copy of a PERL script that does this, but I'd like to do it in
VBScript.  I'm sure there's a way to do this with WinInet, but I am not
too familiar.  Any help would be appreciated.