Heaters not working! (winters coming!!!)

[ndt1993]

Hello I am new to this forum/volvo ownership. I am 20 years old and last week I purchased a 87' 360 glt in white. She had been sat for two years but I am happy to say with a jump pack she started first time. I'm having a few problems the main one being getting it through an m.o.t. as a previous owner has split the passenger sill, I presume by using a trolley jack.
Now all these kind of problems occur with most older cars. However a few niggly bits I can not figure out but im hoping I can find help here.
1. When I first got the car the heater blowers only worked on the 0 setting but not on 1, 2 or 3.
But it has now stopped completely. Ive done some research and found the most common problem is the resistor pack. But these symtoms are different to those on other forums. So my question is....
If it is the resistor pack is there any known person on this forum that can repair my pack? But if this doesn't sound like a resistor whats the next thing to check?
2. One of the headlight washers never worked but on the mot it worked but wouldn't stop. I switched off the igntion then on again. It had stopped but it now constantly sounda like the motor is going.
3. Temp guage doesnt seem to work (any known faults?)
4. I have put £40 pounds of fuel in the car when I got it. Now I know the car was completely dry when I got it. But my fuel guage hasnt gone above the min. Line. I dont know how much the tanks take on these but I would have thought 40 pounds would be atleast a quarter from completely empty.

I know this is a heavy read but I would appreciate any advice and help as I'm frustrated with head scratching and staring at the car hoping it will repair itself.
Many thanks, Nathaniel