HCL Sametime Forum : Best way to move ST8.5.2 on 32 bit to a 64-bit server?

I need to move my ST8.5.2 server on ND8.5.3FP3 from a 32-bit physical server running Win2003 to a 64-bit virtual server running WIn2008. I am not upgrading to ST9 at this time.

I remember when I upgrade to ST8.5.2 and changed physical servers and OS several years ago that I had some major issues.

What is the easiest way to do this?
If ST is a 32-bit application (I believe I read that recently), am I installing on top of 32-bit Domino server? And if so, can I essentially, install what's needed, copy over the data folder from the old server, and then bring the server up?

I also can't locate any kind of installation instructions and I don't recall what I needed to install. I just need the Classic Meeting server. I have the following downloaded files sitting in a folder on my server. I just can't recall which ones I actually need.

Domino 8.5.3 and FP3
Sametime Community Server 8.5.2
Sametime Server 8.5.2 IFR1
Sametime Standard Meeting Server 8.5.2
Sametime Standard Meeting Server 8.5.2 IFR1
These last two haven't been extracted, they're still the zips. So I'm thinking I didn't require them.

When I did this in 2012 I remember having a number of issues of connectivity and such (as I just found my original posts here on the forum where I asked for assistance).

Any help would be greatly appreciated.

Thanks