Windows 7 - Cant access shared folders and files incl shared printer on XP home pc

Hi there people. I have one quite frustrating problem when it comes to connecting few PCs and sharing their resources because there is a mixture of the Windows OSes that they all run.

OK, now I'll try my best to explain configuration of the PC in my network and give you guys as much material as possible to troubleshoot a problem and help me solve this frustrating issue.

At the beginning, let me tell you that I have 3 offices. They are all in different cities.

Head office has 6 PCs, one of them is WIN 7 and others are WIN XP pro, SP2 or SP3.
To be precise 2 are SP2 and 3 are SP3.

On the 2nd location I have only one PC running XP pro SP3
On the 3rd location I have only one PC running XP home latest updates.

All those PCs have hamachi VPN installed and configured.

OK. I managed to make them all see eachother and access shared drives and folders but only thing that I cannot configure is my WIN 7 access WIN XP HOME on the 3rd location. It prompts me with the username and pass even i disabled that option in advanced network settings. WIN 7 access files and folders on the PC that is on 2nd location without any probs as well as all other PCs in the head office, but it wont access win XP home.

And now, I cant access those resources and I cannot use the printer on the 3rd location! That is actually what Im trying to do. I want to install shared printer on WIN 7 and that printer is physically connected to the PC on the location 3.

Uf, it is really hard to explain the situation. Hopefully solution wont be that complicated.
Also, if anybody needs more details just ask for it.


Help pls
Ty all in advance
Dean