[Fascinate Q&A, Help & Troubleshooting] Zerg The Bear:
When you say you followed "a one click push to sd card install," do you mean you did the one click rooting method (SuperOneClick)? If so, the only thing this did was give you the Superuser app. You will have to use other methods to install different ROMs. While superchunkwii's information isn't wrong, it doesn't all apply to you (because he references Odin, and you'll have to use Heimdall and you are already rooted - I think).

Let's got back a couple of steps to clarify what programs do what. Odin and Heimdall can be used to flash your phone via the computer. There are four reasons I know of to use Odin/Heimdall: to recover from your phone being screwed up, to return to stock, to update the modem/radio/baseband, and sometimes to install CWR. The other way to install files to your phone is through CWR. This is the most common, and what you'll be doing the most of. Just about everything you'll download will be a CWR-flashable .zip.

The only thing I have heard about Heimdall is that it uses .bin files, while Odin uses .tar or .tar.md5 files that are archives of .bin files. You will have to download Odin files and extract the .bin files to use in Heimdall.

It sounds like you haven't installed CWR yet, but you will need to get the Odin file for it (from jt1134's thread I talked about before) and extract the recovery.bin file. Use Heimdall to install it onto your phone. Be sure that when you put your phone into download mode for Heimdall (hold volume down while plugging in the USB cable), you remove the battery from the phone. It makes the rest of the process easier.

Now is where superchunkwii's instructions work for you. Start with step 10. When you do step 11, you should go right into Red recovery (CWR). It will say so at the top of the screen along with the version number (v2.5.1.x). Steps 12, 13, and 14 are the methods to wipe the phone clean. When going between ROMs, it is suggested to wipe all three sections (wipe data, wipe cache, and wipe Dalvik). It does take three wipes at each step to ensure you get everything.

Continue following his steps through 17. Now, for step 18, instead of finding the busybox file, you need to navigate to your SuperClean 2.9.2 zip file you downloaded onto your SD card and select that. After the install is complete, you can proceed with step 19 to reboot your phone.

At this point, you have now should have your SuperClean ROM installed. I believe during boot, this will have a honeycomb boot animation. Don't be surprised if this first boot takes a lot longer than normal. Between wiping the Dalvik chache (which was needed) and the new ROM install, this longer boot time is normal. All boots after this should be back to a normal timeframe.

By default, there isn't a reboot option, but our excellent developers have added a reboot option, recovery option (that takes you straight to CWR), and download option (that takes you straight to download mode for Heimdall) to the menu when you hold the power button. This is already part of the SuperClean ROM, but you can install it with any ROM that doesn't have it by using sbrissen's 6 lockscreen mod from the Themes and Apps forum.

If you need to return to stock, there are stock Odin packages on this site that will return you to factory stock - no root, no custom ROM, all of the bloat, etc. These are handy in case you screw something up. It might not be a bad idea to have one of these handy. I would recommend either the DI01 or DL09 stock Odin packages (which you will have to extract the binaries from).