The model runs on my machine (W7, Core 2 Duo 2.13 GHz, 4GB RAM) but I am using a newer version of STAAD. It took about 30 minutes, I get frustrated if a model takes more than1 minute to run!
While analysing it took up nearly 1.7 GB of disk space and when finished 0.95 GB (in the root directory of the model, I didn't check the TEMP folder). Do you have enough free disk space to run the analysis?
Do you need so many load combinations in your model? I deleted all the load combinations except 100 to 138 and it took about 6 minutes to analyse/design the structure.