[PROBLEM] Can't see shared folders with Win7

[Muertomatao]

Hi, this is my first post, first experience with a Linux environment and 3rd day with my Raspberry Pi.

I bought it just to have a cheap and versatile way to view my movies and tv-shows on TV.

I've been for 2 days now trying to configure Xbian and it works smoothly via usb but i need it to work via ethernet.

This is the time-line of my efforts:
- Shared a folder on W7, workgroup "CASA". Couldn't see it on raspberry.
- Googled and found that Samba needs to be installed on Xbian, so i did it. At this point i could see 2 workgroups in XMBC under video -> add -> SMB:

• Workgroup (Corresponding with smb.conf file entry)
• CASA (W7) visible but not accesible.
  

- So I changed workgroup in smb.conf file to match W7's workgroup. With this change I lost all folder under video -> add -> SMB.
- Kept googling and found that sharing in W7 is not as easy as it was with XP so I configured my shared folder's permissions to all users according to several guides. That didn't fix anything so I wondered if maybe I managed to corrupt samba by editing smb.conf.
- Uninstalled and reinstalled samba and now i can see only WORKGROUP under video -> add -> SMB.

In W7 I can see Xbian but can't access it.

I just don't know what to do. Followed and searched many guides but they all do the same steps so I don't know if i'm missing something.

Any help would be much appreciated and sorry for any possible english mistake. Just not my native language.

Thx for support.