poclbm works but rpcminer doesnt work, Windows 7

Hi Mining Community!

I am a newbie, eager to learn. I will certainly benefit from your insight as I venture in the Bitcoin mining world.

I have started mining in Windows 7 64 bit. No extra fancy equipment by now, only an Nvidia card and Core i7 processor.

I use commandline unix utilities all the time, and have been successful in starting mining with a program named poclbm.exe with my NVIDIA card.

I've been clueless, though, about making RCPMINER programs (rpcminer-cuda and rpcminer-cpu) work with slush's pool.

FYI:
- I registered in slush's pool. It's great to be here!
- I installed GUIMiner at first to my Win7 64, but a day afterwards it refused to run. Don't know why....
- I managed to craft my own commandline invocation for poclbm.exe program which came with GuiMiner:
===== COMMANDLINE =====
./poclbm.exe --device=0 --vectors stratum://myUserName.myWorker:WORKER_PASSWD@stratum.bitcoin.cz
====
device 0, of course, is my NVIDIA card. This works wonders, and I confirm any worker I defined under
my account are credited for shares as I see it reported both in poclbm.exe output, and as I immediately
check in My account page at slush's pool.
- Trying to work with other devices/software, I downloaded all RPCMINER programs from a link at a post (probably
at this forum). I've managed to assemble a workable instruction either putting or removing the optional/adhoc
options GPU= AGRESSION= and THREADS= parameters
So my commandline looks somewhat like this, give or take the optional/adhoc parameters:
===== COMMANDLINE =====
rpcminer-cuda.exe -gpu=0 -aggression=8 -url=http://api.bitcoin.cz:8332 -user=myUserName.myWorker
-password=WORKER_PASSWD
====

FOCUSING ON RPCMINER PROGRAMS:
- As an ouput, I get the
===== OUTPUT =======
xxxxx KHash/s,
=====
and, ocassionally,
===== OUTPUT =======
Sending to server: {"method":"getwork","params":BLABLABLABLAH.....
Server sent: {"result": true, "id": "1", "error": null
=====
Problem is, when I get back to slush's pool my account page, NO SHARES ARE REPORTED although rpcminer-cuda|cpu.exe reports them as found!

SO WHAT DO I ASK?

Okay, so as I make my way into bitcoin mining, I would like to know if there is something I might not be doing well with rpcminer-cuda|cpu.exe programs. I've already quoted prototypical command invocations as I enter them. I've also mentioned poclbm.exe works great in the same machine.

It appears slush's pool doesn't recognize or somewhat doesn't accept whatever shares rpcminer-cuda|cpu.exe find and apparently report as accepted by the server.

I doublechecked that I am entering the correct user and password, and yes, for the right site. (So far I only ventured into another pool which didn't work even with poclbm.exe after I registered, before registering at slush's pool).

I've assembled commands and the like from what I've read in the posts, so there might be some need for fine-tuning or rectification of my commands. And, by all means, please correct me if my use of terms, etc is inappropriate.

Looking forward to your insightful replies,
Best of luck,
Malr.