Accessing FTP server thru HTTP Page (asking user-id and password)

Hi,
I'm using obsolete machine running like FTP and WEB Server, and actually
I'm deploying FTP accounts to internal customers in this way:

"ftp://userid:password@ftpserver.dom"

so they can 'paste' it into browser URL and they can retrieve files with
browser.

I'd like to create an HTTP logon page (a little portal, asking for
user-id and password) "linking" to the right FTP account home folder, to
lets internal customer access their data, instead of supply URL as before.

I'm using old RH 7.1 box, Apache 1.3.19-5 and Wu-FTP 2.6.1-16

Several years ago I made the same job on old AIX 3.x box with Apache 1.3
(if i remember well) but I don't remember why ;-(


Could you give me some help/hints/URL to check on internet?

thanks for your help
regards

Matteo