I realise it's a long time since Global99's original post, but I have exactly the same situation and similar limited technical knoweldge. I am running Windows Home XP and have a Grandstream Budgetone SIP phone that has been lying around doing nothing since I gave up using Sip-to-Sip for Skype. I would love to be able to use it for Skype instead of headphones.
I understand pythonpoole's basic guidelines and have installed the various software components, namely Axon, Uplink and IVM. The setup is not working, although it is probably quite close. I fear I have omitted something crucial, but possibly quite simple in the configurations somewhere. I am also unclear whether I need a SIP account with a Sip Service provider, even if I do not need to make Sip-to-Sip calls. I only want to be able to communicate through Skype from the SiP phone.
If anyone can help, I can provide a screen copy of the log.
Kind regards