Radiator Replacement on 1.6 440 and Funny Noise!

[S1m0nR]

I'm hoping some of you kind Volvo enthusiasts can help me out with fixing my sister's trusty old car.

It's an 'N'-reg 440 1.6 with just over 140,000 miles on the clock. It has Air Conditioning if that makes a difference with the following questions.

Unfortunately it let her down this weekend when the radiator failed and deposited all the coolant all over the A11. She pulled over and stopped the engine before it got too hot so I'm hopeful that it hasn't warped the head or anything bad like that.

Basically we're looking for a replacement radiator and I'm wondering what the cheapest option is. There are quite a few on eBay but I don't know what the interchangability is like. Can anyone help?

This one appears to be the cheapest but will it fit?

Finally, on the subject of radiators, how easy is it to replace?

One last thing - this car has also for some time been making a squeeking sound on startup which lasts a couple of minutes and then goes away. It did this when she first got the car and a replacement tensioner seemed to cure it but now it's back. It sounds to me like either a timing belt tensioner or water pump bearing. What's more likely do you think?

Many thanks all for the help - it's greatly appreciated!