Thru a 'nasty' proxy

[Vittorio]

Old linux user now moving gradually to freebsd 5.2.1, at office we have 
a lan 
1) with an http proxy for which authentication via userid & passwd is 
needed AND 
2) ftp is blocked, not permitted.

I want to use the ports and compile my programs. I have already tried to 
set the http proxy (as under linux, by the way!)  issuing:

env HTTP_PROXY="http://userid:passwd@myproxy.it:8080"

to no avail; freebsd complains endlessly that 
...............................
fetch: ftp://............: Host not found
.............................
as if it cannot resolve the ftp site (which in turn is blocked) even 
though  I have the nameserver under /etc/resolv.conf


Could you please tell me in a straightforward manner what **exactly** 
should I do for both 1) and 2)? 

Is there any alternative way of getting the source ports using an http 
connection (I cannot buy the CDs and similkar things)?

Ciao

Vittorio