SVP don't want your money – but what can I do to help?

I’ve just tried to make a donation via the SVP website.

Unfortunately the site does not work with non IE Web browsers (such as Mozilla Firefox or Google Chrome). That means about 1/4 of the people wishing to donate are being locked out.

Normally at this point I’d rant about whatever corporate decision maker let this one through. But I’m just sad – a deserving charity, always stretched for cash,  is 25% down due to some simple (JavaScript) errors.

I’ve emailed the address given, but I’m likely to viewed as some random web lunatic (and maybe that’s not far from the truth). So what can I do to help? All suggestions welcome.

Update: I got a fairly quick email back from SVP acknowledging the problem – better than many commercial organisations in that regard. But the question remains – how can somebody with technical skills volunteer to help a charity without coming across as a nutcase?

Update 2: A further update from SVP within 10 days – test the site again – appears to work normally.