limiter plugins

I’ve gone from Nuendo 3 to 5 last September, and my first (and lasting) impression is that I preferred 3’s reverb, compressor and limiter plug-ins, certainly from an ease-of-use point of view. I’ve got where I need to be now, but it took much longer to find reverbs i liked on 5, and the limiter is very cack-handed. With 5, unless I’ve got the wrong end of the stick, for UK broadcast I need the limiter set at -10dBFS, so you have to put +10dB on the imput and -10dB on it’s output. On the old N3’s limiter you just set the threshold at -10db and that was it. just like a real one!
Don’t suppose there’s any way I can use the old N3 plug-ins at all?

The limiter is a buss limiter, and the operation you describe is correct. Simply setting it to -10dB will attenuate everything passed through it by that amount, so to attenuate to that amount you do as you say.

2 - Of course you can.
Either point the plugin manager at the N3 plugins folder, or copy the DLL files of the ones you want to the public plugin folder instead. Or are they still on the installation DVD? (cannot remember, but they might be)
The Reverbs (with the addition of Roomworks & Roomworks SE plus REVerence) are still there - Reverb A & Reverb B.

As I recall, it was Reverb A that I liked. If those are still present, why didn’t it pull that back up then, when opening an N3 project in N5?

perhaps cause it’s a “optional” intallation & if they still there you can find it in your Nuendo 5 DVD

Because of the way the stock (included) VSTplugins are installed.
With N3, they all ended up in a folder (I am on PC, but same basic idea applies) called
C:\Program Files\Steinberg\Nuendo3\VSTplugins, aka the “private” plugin folder.
With N5, it is a mixture of VST2 and VST3 so they end up in a different place now.
C:\Program Files\Steinberg\Nuendo5\VStplugins for VST2, and
C:\Program Files\Steinberg\Nuendo5\VST3 - both these 2 folders are still for the stock, or tied plugins and are only available inside Nuendo 5 (or whatever version).
To make matters even more confusing there is another location for plugins that share across Steinberg applications at C:\Program Files\Common Files\Steinberg\VST2 where you find things like HALion One.

To get access to other plugins, you need to install to one of the public, or shared plugin folders or else point the plugin manager in Nuendo 5 at the VST plugins folder from Nuendo 3.
Shared locations are myriad, but mainly to be found at either
C:\Program Files\Steinberg\VSTplugins for VST2 plugins, or
C:\Program Files\Common Files\VST3 for VST3 plugins. (Incidentally, you can copy the Sonnox restoration plugs from WaveLab 7 to this folder and get them almost working properly (they have bugs) in Nuendo or Cubase or any other VST3 compliant host).

I hope this helps.
You will find the reverb plugin you are looking for in C:\Program Files\Steinberg\Nuendo3\VSTplugins\Reverb