yes, that's me
I am of limited use to you though, because I don't really do measurements - but just make up a basic sponge mix (I use two eggs instead of one for a really puddingy consistency, or a bit of suet). Melt a few tablespoons of jam in a saucepan with a bit of lemon juice, get it fairly liquidy so you can pour it (but not too watery). Pour it into the bottom of a pudding basin/dish, then spoon the cake mix into the middle. Then microwave it for about 5 minutes, depending on your microwave and the size of the dish (look through the window, if it looks done it'd done)
Also works with chocolate sauce/pineapples in syrup/treacle etc.