Connecting to Mac bound to a Windows domain from Windows

Question

I have a 2010 MBP running OSX 10.6.7 which is "bound to the [my company name] domain" (that's how our corporate IT department describes it; not sure if this is technically accurate).   We have a mixed Mac/Windows environment but are predominantly Windows based (I log onto my Mac using my Windows user id/password).
I'm trying to access shared files on this machine from a Windows 7 machine on the same domain.
Before I had my Mac bound to the Windows domain, I was able to access my shared files by following the instructions in OSX help (I enabled a shared folder, added my Windows username and password as a local admin on my Mac, turned on SMB access for that user, and all was good).
Now that my Mac is bound to the domain, I can access the directories associated with the local user account I have on my Mac by connecting from my Windows machine as a different user and then entering the account name and password associated with my local user on the Mac.
I can't access the directories associated with my Windows account.
I tried adding a local user (sharing only) to my Mac with the same userid/password as my Windows account, but this prevented me from logging into my corporate network from my Mac, so I deleted this local user.
Any assistance greatly appreciated.
thanks.

Answer 1

Partial success: after some experimentation with my local IT guru, I'm now able to access my home directory (which is tied to a network account, not a local one), but I can't access it using my Windows user ID/password.
Here's what we worked:
Confirm sharing is enabled for desired folder, SMB sharing is turned on, my local user account has access to this folder (in the users section of the file sharing dialog), and this local user account is enabled for Windows sharing.  [This is no different from what we had previously done]
Get Info on the same desired folder and give read/write access to the folder (help doesn't mention anything about this step; I'm assuming that in normal use - where you're using a local account instead of a Centrify network account - you don't need to do this because you have access to these folders by default.  In my case, since I'm sharing a folder in the directory associated with my network account instead of the directory associated with my local account, these permissions are not enabled by default.
Log onto my Mac from a Windows machine using my Mac's local username/password.  [Again, this is no different that what I was doing previously, but because of step 2, I can now access the folder associated with my network user]
I'd prefer to just stick with a single user id/password, but this at least lets me access my files.