Hi Roobster,
I would welcome you to the forum but I know this isn't a place any of us want to be! However, you are doing the right thing by coming on here and please do keep us aware of how you are doing.
My op was non-nerve sparing so not all my advice applies. I am assuming your catheter has been removed. If so I would recommend a trip to your GP. It is very common to get a water infection after having the catheter removed (I did). It's a simple dip stick test to find out and a two week course of antibiotics to clear it up.
As for the wee man, I would recommend a lot of patience. From what I have read on here, those lucky enough to have nerve sparing report several months for the recovery and can be up to a year. In my NHS trust I was contacted at about 8 weeks by the Erectile Dysfunction clinic and I was allowed to order a Vacuum Erection Device (VED) which was supplied a week later. I think this does vary from Trust to Trust. The reason they waited till 8 weeks was given as this is the right time to start rehabilitation for the wee man. As non-nerve sparing I have to use this device every time I want full sex for the rest of my life. There are injections and viagra pills. I assume you are on the viagra pills. If you do have a water infection that may be preventing the pills working. I will state I am not a doctor and I may be very wrong about the water infection.
I so hope the above helps and please do keep posting and if you have any other questions we will be happy to help.