How to use the proxy feature properly?

Okay, I tried several times to use proxies with FRD, but none of them worked so far... So I guess I could get some directions from you guys.

I tried to use the IPORT free proxies which HideMyAss provides.

Here's the link: [proxylist.hidemyass.com]

You can sort them with various criteria of your taste and pick up the ones you want.
But... Thought it would work on FRD just by placing the Server IP and Port. Well... That works on Firefox. However I can't get it to work on FRD.
The only way to enable the 'Proxy Configuration' option is by checking the "Use default system connection" option. It's gonna filter so...

Well I need some help. I don't know what else to do. I also tried to change the protocols from HTTP to SOCKS, but no success.

Please list the steps to take if possible, with HideMyAss for example.

Thanks again!

HideMyAss has a large list of proxies to use
using 'Proxy Configuration' to set 1 at a time is slow, so ignore that
its easier to create and use a proxy list

from HideMyAss.com

Last Update	IP Address	Port	Country	Speed	Connection Time	Type	Anon
9mins	125.214.184.26	 8080	 flag Sri Lanka		HTTPS	High +KA
13mins	201.221.133.182	 8080	 flag Colombia		HTTPS	High +KA
17mins	217.23.64.146	 3128	 flag Russia		HTTPS	High +KA
22mins	183.221.217.81	 8123	 flag China		HTTPS	High +KA
...

create proxylist.txt

125.214.184.26:8080
201.221.133.182:8080
217.23.64.146:3128
183.221.217.81:8123

in FRD
Options > Preferences - Connections tab
enable option 'Use Proxy List' & load 'proxylist.txt'
Options > Use Connections > Refresh proxy list

downloads will automatically connect using the proxy list
or you can right click and force a download to start from specific proxy

disable unwanted proxies in 'Options > Use Connections'
add/change proxies in 'proxylist.txt' then 'Refresh proxy list'