Hi there SUroot
Thanks for taking the time to respond.
Yes, I rooted first - using unrevoked3. I already got to that part a looong time before I began struggling with the app2sd+ part

The next 15 hours or so I spent trying to figure out a way to actually get app2sd -without- having to install some (heavily) modified custom rom. It was extremely frustrating - mostly because there are so many different approaches it seems - but I could not make any of them work.
I got the ROM Manager, and created a 512MB ext partition, but it still didnt work.
References to init.d was something I kept coming across over and over, but I found it hard to grasp what it really was and how I should configure it (I have no experience with linux systems).
But, finally I decided I had wasted enough time and decied on this rom:
[ROM] [05/02] Pre-rooted Stock Froyo (2.29.405.5) [Optional mods]
... and it literally saved me from going nuts
This seemed to be the only approach (for me, anyway). I would still have HTC Sense (which I really like), but with a few extra options like app2sd, and the nice feature that allows you to wake the unit by pushing the optical tracker.
So all I really needed was unrevoked3 and that Pre-rooted Stock Froyo above. Nothing more. I cant imagine all the time I wasted figuring out this...
Anyway.... I now have a 1GB ext3 partition created for app2sd, and it works like a charm!
