You need to go to the eComStation Software Subscription site. If you do not have that, you do not have access to anything that has been released after your subscription ran out. It must be renewed after one year (the site becomes static, as you describe, if you don't).
The ONLY version of the Multimac Realtek driver that will work with the chipset that you have, is the one from that source. It was, unfortunately released as r8169-0.3.1.wpi, which is the same name, and version, used for an earlier, defective, version of the driver. The one that works, for me, is dated 5/17/2013 (m/d/y). Bldlevel reports:
Signature: @#D Azarewicz:0.3.1#@##1## 17 May 2013 08:46:29 DAZAR1
:::1::SVN253@@Realtek 8169/1Gb PCIe MAC Driver
Vendor: D Azarewicz
Revision: 0.03.1
Date/Time: 17 May 2013 08:46:29
Build Machine: DAZAR1
FixPak Version: SVN253
File Version: 0.3.1
Description: Realtek 8169/1Gb PCIe MAC Driver
on the r8169.os2 file. If that is what you have, please report that it doesn't work, with as much information as you can supply, at the Multimac bug tracker.
I have three Realtek Gigabit devices. PCI.EXE describes one, on board device, as:
Device 8168h RTL8111/8168B PCI Express Gigabit Ethernet controller
it is, in fact a:
10EC:8168 version 21 (RTL8168c/8111c)
(from RtlChipId.exe, that is available in the Software Subscription betazone).
A second, on board device, is described as:
Device 8168h RTL8111/8168B PCI Express Gigabit Ethernet controller
It is, in fact:
10EC:8168 version 33 (RTL8168evl/8111evl)
which is probably the same as yours.
I don't have the other one installed, but I think it is
10EC:8169 version ?? (RTL8169a/8111a)
(or something similar). It is on a PCI plug in card.
As you can see, Ivan's question is valid, you need to find out which Realtek chip it is, and the only tool, that I know about, that actually tells you that, is RtlChipId.exe, which is found in the betazone under Software Subscription (which is NOT the same as the betazone in the eCS web site).
The third one always worked with the various versions of the Multimac Realtek driver.
The first one started working, before the second one did.
The second one is working properly, with the above mentioned driver, but did some nasty things before the latest driver was available. One of those nasty things is that it disabled the ethernet interface, and the ONLY way to get it turned back on, is to turn off all power to the machine (pull the plug, - and remove the battery if it is a laptop - for a minute, or so). Even windows (and the working Multimac driver) wouldn't re-enable it, before the power was removed. The only other driver, that came close to working, was the old RTGNDA driver.